Skip to main content

Table 1 Description of the study characteristics and findings among the 30 studies

From: Interventions in hypertension: systematic review and meta-analysis of natural and quasi-experiments

First author, year

Type of study (sample size, study design, intervention duration in months, data source)

Population (geographic region, subpopulation)

Level of intervention (settings)

Intervention targeted

Reasons why the study did not use RCTs to evaluate interventions

Findings

Studies that reported hypertension prevalence change

 Barnidge, 2015 [24]

• N = 794

Design: DID

Duration: 24 months

Data sources: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: General population

Community

Nutrition education and give access to fruits and vegetables through community gardens

Type: Education and counseling

Domain: Nutrition, social and economic factors

The authors stated that a randomized design would have been hard to be conducted in community-based work.

Treatment group hypertension prevalence in the beginning: 61.0%

Treatment group hypertension prevalence in the middle: 45.0%; P-value beginning vs. middle < 0.01

Treatment group hypertension OR beginning vs. middle: 0.52; 95% CI: (0.38; 0.71)

Control group hypertension prevalence in the beginning: 46.7%

Control group hypertension prevalence in the middle: 49.8%; P-value beginning vs. middle = 0.39

Control group hypertension OR in the beginning vs. middle: 1.11; 95% CI: (0.81; 1.54)

 Sahli, 2016 [25]

• N = 2000

Design: PPCG

Duration: 36 months

Data Source: Primary

Region: Africa

Subpopulation: all genders and racial/ethnic groups

Participants: General population

Community

Healthy lifestyle promotion, education on smoking, physical activity, and diet. Free smoking cessation consultations.

Type: Education and counseling

Domain: Lifestyle

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

All participants:

Treatment group hypertension prevalence in the beginning: 37.3%

Treatment group hypertension prevalence at the end: 33.7%; P-value beginning vs. end: 0.1

Control group hypertension prevalence in the beginning: 31.1%

Control group hypertension prevalence at the end: 33.4%; P-value beginning vs. end: 0.28

Among participants younger than 40 years old:

Treatment group hypertension prevalence in the beginning: 22.8%

Treatment group hypertension prevalence at the end: 16.2%; P-value beginning vs. end: 0.01

Control group hypertension prevalence in the beginning: 14.0%

Control group hypertension prevalence at the end: 15.1%; P-value beginning vs. end: 0.52

Among nonobese participants:

Treatment group hypertension prevalence in the beginning: 31.4%

Treatment group hypertension prevalence at the end: 26.2%; P-value beginning vs. end: 0.03

Control group hypertension prevalence in the beginning: 21.9%

Control group hypertension prevalence at the end: 25.1%; P-value beginning vs. end: 0.17

 Comin, 2017 [18]

• N = 189,067

Design: PPCG

Duration: 30 months

Data Source: Primary

Region: Europe

Subpopulation: all genders and racial/ethnic groups, aged 35–74 years

Participants: Patients with hypertension and diabetes and hypercholesterolemia

Health center

Computerized clinical practice guidelines: General practitioners had

General practitioners accessed the computerized clinical practice guidelines at least twice a day

Type: Management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

In hypertension patients:

Women:

Treatment group percentage of improved BP control: 9.8%

Control group percentage of improved BP control: 6.7%

Treatment group vs. Control group percentage of improved BP control: P-value < 0.001

Men:

Treatment group percentage of improved BP control: 11.8%

Control group percentage of improved BP control: 7.9%

Treatment group vs. Control group_ percentage of improved BP control: P-value < 0.001

 Fikri-Benbrahim, 2012 [26]

• N = 177

Design: PPCG

Duration: 5 months

Data Source: Primary

Region: Europe

Subpopulation: all genders and racial/ethnic groups

Participants: all hypertension patients

Community

Pharmacist intervention comprising (1) education about hypertension, (2) home blood pressure monitoring, and (3) referral

to a physician through personalized reports when necessary

Type: Education, counseling and management

Domain: Lifestyle, pharmacological therapy

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group percentage of controlled BP in the beginning: 71.3%

Treatment group percentage of controlled BP at the end: 52.9%

Treatment group percentage of controlled BP change P-value: 0.01

Control group percentage of controlled BP in the beginning: 55.1%

Control group percentage of controlled BP at the end: 50.6%

Control group percentage of controlled BP change P-value: 0.48

Treatment group vs. Control group percentage of controlled BP P-value: 0.026

Achieving BP control treatment group vs. control group OR: 2.46; 95% CI: (1.15, 5.24); P-value: 0.02

 James, 2018 [17]

• N = 53,738 (12,555 with cardiovascular disease, and 41,183 with hypertension)

Design: DID

Duration: 6 months

Data Source: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with cardiovascular disease and hypertension

Health center

Population Health Management Intervention:

Adding a dedicated population health coordinator who identifies and reaches out to patients not meeting cardiovascular care goals to health management programs

Type: Screening and referral for management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Non-Hispanic White: BP control PHC vs. non-PHC: OR = 1.13, 95% CI: (1.05, 1.22)

Non-Hispanic Black: BP control PHC vs. non-PHC: OR = 1.17; 95% CI: (0.94, 1.45)

Hispanic: BP control PHC vs. non-PHC: OR = 0.90; 95% CI: (0.59, 1.36)

Non-Hispanic Black vs. Non-Hispanic White patients: OR = 1.05; 95% CI: (0.83, 1.31)

Hispanic vs. non-Hispanic White patients: OR = 0.82; 95% CI: (0.53, 1.25)

Studies that reported mean blood pressure change

Intervention subgroup: education and counseling

  Flannery, 2012 [27]

• N = 39

Design: DID

Duration: 6 months

Data Source: Primary

Region: America

Subpopulation: Only women of all racial/ethnic groups

Participants: nurse assistant

Organization

The Worksite Heart Health

Improvement: Environmental and policy assessment; education; and ongoing motivation

Type: Education and counseling

Domain: Diet, physical activity, environmental and policy factors

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group mean SBP in the beginning: 129.28; SD: 17.9

Treatment group mean SBP at the end: 119.88; SD: 14.76

Control group mean SBP in the beginning: 125.26; SD: 18.74

Control group mean SBP at the end: 120.3; SD: 14.43

Treatment group mean DBP in the beginning: 77.5; SD: 8.98

Treatment group mean DBP at the end: 70.84; SD: 6.82

Control group mean DBP in the beginning: 74.4; SD: 13.52

Control group mean DBP at the end: 74.43; SD: 11.77

  Gemson, 2008 [28]

• N = 141

Design: PPCG

Duration: 12 months

Data Source: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: all hypertension patients

Organization

Multicomponent workplace intervention comprising informational health messages, use of a pedometer bioelectrical impedance measured body weight and physical activity education

Type: Education and counseling

Domain: Lifestyle, physical activity, body fat measurement

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: −10.6; SD: 111.4

Treatment group DBP MD: −6.1; SD: 8.9

Control group SBP MD: −2.1; SD: 9.3

Control group DBP MD: 0.1; SD: 6.2

  Lin, 2017 [29]

• N = 99

Design: PPCG

Duration: 3 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups, aged 20 years and older

Participants: office workers

Organization

Implementation of a “Sit Less, Walk More” Workplace intervention comprising five components: Monthly newsletters, motivational tools, pedometer challenge, environmental prompts and walking route

Type: Education and counseling

Domain: Lifestyle, physical activity

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: −1.1; SD: 11.7

Treatment group DBP MD: −2.6; SD: 8.9

Control group SBP MD: 1; SD: 16.3

Control group DBP MD: 2.6; SD: 11.7

  Chang, 2013 [30]

• N = 133

Design: PPCG

Duration: 3 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups, aged 55 years and older

Participants: General population

Community

60-min Tai Chi physical activity practice

Type: Education and counseling

Domain: Physical activity

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group vs. Control group SBP: − 14.3; 95% CI: (− 19.2, − 9.4)

Treatment group vs. Control group DBP: − 7.02; 95% CI: (− 10.6, − 3.4)

  Verberne, 2016 [31]

• N = 381

Design: PPCG

Duration: 12 months

Data Source: Primary and secondary

Region: Europe

Subpopulation: all genders and racial/ethnic groups

Participants: overweight and obese patients

Health center

Prescription of lifestyle modifications by general practitioners which consisted of advice and referrals pertaining to diet and physical activity

Type: Education and counseling

Domain: Lifestyle, physical activity, nutrition

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: − 3.5; SD: 15.4

Treatment group DBP MD: − 3.4; SD: 9

Control group SBP MD: − 3; SD: 15.5

Control group DBP MD: − 3.6; SD: 8.5

  Xu, 2015 [32]

• N = 38

Design: PPCG

Duration: 4 months

Data Source: Primary

Region: America

Subpopulation: women of all racial/ethnic groups aged 60 years or older

Participants: obese patients

Community

Tai Chi physical activity and nutrition education and a behavioral weight loss program based on a modified DASH

diet

Type: Education and counseling

Domain: Lifestyle, physical activity, nutrition

The authors stated that although the study of the intervention has been done as an RCT in a clinic, they wanted to translate the intervention in a community setting.

Treatment group vs. Control group SBP: − 8.9; 95% CI: (− 19.1, 1.4)

Treatment group vs. Control group DBP: − 3.4; 95% CI: (− 9.8, 3.09)

  Zhu, 2018 [33]

• N = 36

Design: PPCG

Duration: 4 months

Data Source: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups aged 18–25 years old

Participants: office workers

Organization

A workplace physical activity intervention comprising sit-stand workstations and sitting-specific motivational support and instructions

Type: Education and counseling

Domain: Physical activity

The authors stated that a randomized design would have been hard to be conducted in real world organizational settings.

Treatment group mean SBP in the beginning: 119.1; SD: 16.4

Treatment group mean SBP at the end: 121.4; SD: 19.8

Control group mean SBP in the beginning: 118.8; SD: 12.2

Control group mean SBP at the end: 123.8; SD: 10.6

Treatment group mean DBP in the beginning: 75.6; SD: 10.3

Treatment group mean DBP at the end: 77.2; SD: 12.2

Control group mean DBP in the beginning: 77.2; SD: 10.8

Control group mean DBP at the end: 78.9; SD: 6.9

  Kamran, 2016 [34]

• N = 138

Design: PPCG

Duration: 6 months

Data source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension

Health center

Nutritional advice/education about the DASH approach which was presented in group teaching sessions

Type: Education and counseling

Domain: Diet

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: − 13.0; SD: 10.2

Treatment group DBP MD: − 7.3; SD: 5.3

Control group SBP MD: 0.5; SD: 12.2

Control group DBP MD: − 0.7; SD: 7.8

  Ibrahim, 2016 [35]

• N = 268

Design: PPCG

Duration: 12 months

Data source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups aged between 18 and 65 years old

Participants: Patients with prediabetes

Community

Group-based sessions and individual counseling to reinforce behavioral change (diet, physical activity)

Type: Education and counseling

Domain: Lifestyle

The authors stated that a randomized design would have been hard to be conducted in community-based work.

Treatment group vs. Control group SBP: − 1.71; 95% CI: (− 3.97, 0.56)

Treatment group vs. Control group DBP: − 2.63; 95% CI: (− 3.79, − 1.48)

  Kassim, 2017 [36]

• N = 328

Design: PPCG

Duration: 6 months

Data source: Primary

Region: Asia

Subpopulation: low socio-economic status housewives aged 18–59 years old, all ethnic groups

Participants: Overweight and obese housewives

Community

Lifestyle interventions consisting of a healthy diet, physical activity, and self-monitoring behaviors

Type: Education and counseling

Domain: Lifestyle

The authors stated that a randomized design would have been hard to be conducted in community-based work.

Treatment group mean SBP in the beginning: 122.29; SD: 16.84

Treatment group mean SBP at the end: 116.45; SD: 14.62

Control group mean SBP in the beginning: 120.63; SD: 14.62

Control group mean SBP at the end: 114.59; SD: 14.86

Treatment group mean DBP in the beginning: 78.59; SD: 12.03

Treatment group mean DBP at the end: 77.14; SD: 11.15

Control group mean DBP in the beginning: 77.83; SD: 9.54

Control group mean DBP at the end: 76.10; SD: 9.49

  Fazliana, 2018 [37]

• N = 328

Design: PPCG

Duration: 12 months

Data Source: Primary

Region: Asia

Subpopulation: housewives aged 18–59 years old

Participants: Overweight and obese housewives

Community

The weight loss intervention, consisted of individual diet counseling, group exercise and

self-monitoring tools

Type: Education and counseling

Domain: Lifestyle

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD in the 6 months: − 6.81; 95% CI: (− 9.72, − 3.90)

Treatment group DBP MD in the 6 months: − 1.71; 95% CI: (− 3.71, 0.28)

Control group SBP MD in the 6 months: − 7.95; 95% CI: (− 11.69, − 4.20)

Control group DBP MD in the 6 months: − 1.73; 95% CI: (− 4.12, 0.67)

  Sahli, 2016 [25]

• N = 2000

Design: PPCG

Duration: 36 months

Data Source: Primary

Region: Africa

Subpopulation: all genders and racial/ethnic groups

Participants: General population

Community

Healthy lifestyle promotion, education on smoking, physical activity, and diet.

Type: Education and counseling

Domain: Lifestyle

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group mean SBP in the beginning: 132.4; SD: 19.2

Treatment group mean SBP at the end: 130.6; SD: 17.7

Control group mean SBP in the beginning: 129.7; SD: 17.8

Control group mean SBP at the end: 130.4; SD: 17.9

Treatment group mean DBP in the beginning: 78.7; SD: 11.7

Treatment group mean DBP at the end: 76.9; SD: 11.1

Control group mean DBP in the beginning: 78.1; SD: 10.8

Control group mean DBP at the end: 76.7; SD: 11.0

Intervention subgroup: management

  Panattoni, 2017 [19]

• N = 11,190 (hypertension patients aged 18–59 years: N = 4385; hypertension patients aged 60–80 years: N = 4620;diabetes patients aged 18–75 years: N = 3768)

Design: DID

Duration:12 months

Data Source: Secondary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension or diabetes

Health center

Team based chronic care model, redesigned primary care visits to enhance the self-management support provided by physicians, and a health coaching program.

Type: Management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Adjusted results:

Among diabetes patients aged 18–75 years over the 6-month period:

Treatment group vs. Control group SBP: − 1.65; 95% CI: (− 3.68, 0.39)

Treatment group vs. Control group DBP: − 1.13; 95% CI: (− 2.23, − 0.04)

Among hypertension patients aged 18–59 years over the first 6-month period:

Treatment group vs. Control group SBP: − 0.75; 95% CI: (− 2.82, 1.31)

Treatment group vs. Control group DBP: − 0.58; 95% CI: (− 1.87, 0.71)

Among hypertension patients aged 60–80 years over the 6-month period:

Treatment group vs. Control group SBP: − 0.96; 95% CI: (− 2.86, 0.95)

Treatment group vs. Control group DBP: − 1.03; 95% CI: (− 2.07, 0.01)

Unadjusted results of diabetes aged 18–75 years:

Treatment group mean SBP in the beginning: 126.5; SD: 12.7

Treatment group mean SBP at the end: 125.5; SD: 15.3

Control group mean SBP in the beginning: 129.8; SD: 13.2

Control group mean SBP at the end: 129.8; SD: 15.7

Treatment group mean DBP in the beginning: 76.4; SD: 7.7

Treatment group mean DBP at the end: 74.4; SD: 8.8

Control group mean DBP in the beginning: 76.2; SD: 7.9

Control group mean DBP at the end: 74.9; SD: 9.4

  Miao, 2018 [38]

• N = 1673 pairs

Design: PSM & DID

Duration: 12 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension

Community

Improve the performance of social health insurance system through increasing outpatient expenditure reimbursement ratio.

Type: Management

Domain: Payment

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

SBP MD: −2.9, P-value = 0.011

DBP MD: − 7.9,P-value = 0.508

  Scanlon, 2008 [39]

• N = 2067

Design: DID & PSM

Duration: 12 months

Data source: Secondary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with diabetes

Health center

Team-Based Treatment: Collaborative team-based treatment with teams comprising a physician or nurse practitioner, care manager, medical assistant, information specialist, and a part-time social worker

Type: Management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

All CareSouth patients: SBP MD per year: − 0.88;P-value: 0.01

CareSouth patients with baseline SBP > 140: SBP MD per year: − 2.2;P-value: 0.04); 95% CI: (− 3.88, − 0.44)

Intervention subgroup: education, counseling and management

  Darviri, 2016 [40]

• N = 548

Design: DID

Duration: 2 months

Data Source: Primary

Region: Europe

Subpopulation: all genders and racial/ethnic groups, aged 18–65 years, residents of Athens and literate in Greek

Participants: all hypertension and pre-hypertension patients

Nation

Stress management: Biofeedback-assisted diaphragmatic breathing and relaxation, lifestyle counseling, cognitive reconstruction and other relaxation techniques

Type: Education, counseling and management

Domain: Stress

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

SBP MD: − 2.62; 95% CI: (− 3.96, − 1.29) DBP MD: − 1; 95% CI: (− 1.9, − 0.93)

Fernandez, 2008 [41]

• N = 65

Design: PPCG

Duration: 4 months

Data Source: Primary

Region: America

Subpopulation: all genders and Black, African American, Latino or Hispanic racial/ethnic groups, aged 60 and older

Participants: all hypertension patients

Community

Lifestyle modification education about hypertension, antihypertensive medications, diet and physical activity, and adherence to medication

Type: Education, counseling and management

Domain: Pharmacological therapy, diet and physical activity

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: − 13; SD: 18.5

Treatment group DBP MD: − 5.6; SD: 10.8

Control group SBP MD: − 10.6; SD: 24

Control group DBP MD: − 3; SD: 11.8

  Fikri-Benbrahim, 2012 [26]

• N = 177

Design: PPCG

Duration: 5 months

Data Source: Primary

Region: Europe

Subpopulation: all genders and racial/ethnic groups

Participants: all hypertension patients

Community

Pharmacist intervention comprising (1) education about hypertension, (2) home blood

pressure monitoring, and (3) referral to a physician through personalized reports when necessary

Type: Education, counseling and management

Domain: Lifestyle. Pharmacological therapy

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: − 6.8; SD: 13.7

Treatment group DBP MD: − 2.1; SD: 8.9

Control group SBP MD: − 2.1; SD: 9.3

Control group DBP MD: 0.1; SD: 6.2

  Jung, 2017 [42]

• N = 64

Design: PPCG

Duration: 7 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups, aged 65 years or older

Participants: all hypertension patients

Community

In-class educational on hypertension management, community-based eHealth monitoring, and monthly telephone counseling

Type: Education, counseling and management

Domain: Lifestyle

The authors stated that a randomized design would have been hard to be conducted in community-based work.

Treatment group SBP MD: − 11.4; SD: 12.5

Treatment group DBP MD: − 3; SD: 8.5

Control group SBP MD: − 0.6; SD: 11.7

Control group DBP MD: 0.6; SD: 9.5

  Hussain, 2016 [43]

• N = 629

Design: DID & PSM

Duration: 3 months

Data sources:Primary and secondary

Region: America

Subpopulation: all genders and racial/ethnic groups, aged 40–74 years

Participants: all hypertension patients

Health center

Nutritional and pharmacological therapy and lifestyle counseling, and medication adherence

Type: Education, counseling and management

Domain: Lifestyle, pharmacological therapy

The authors stated that a randomized design would have been hard to be conducted in a pragmatic clinical setting.

SBP MD: 9;P-value < 0.001

DBP MD: 4; P-value: 0.004

  Miao, 2016 [44]

• N = 1426

Design: DID

Duration: 24 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension

Health center

Integration of preventive-curative services delivery and cooperation among village-town-county physicians, including educating on smoking cessation, moderate drinking, light and healthy diet, regular exercise and to take blood pressure drugs regularly, monitor the blood pressure

Type: Education, counseling and management

Domain: Lifestyle, pharmacological therapy

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

SBP MD: − 5.62; SD: 16.49

DBP MD: − 5.43; SD: 15.03

  Visanuyothin, 2018 [45]

• N = 128

Design: PPCG

Duration: 5 months

Data source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension

Health center

Integrated program with home blood pressure monitoring and village health volunteers. Group-based health education on home blood pressure monitoring and self-monitoring during workshops, including hypertension measurement skills, self-management

Type: Education, counseling and management

Domain: Care

The authors stated that a randomized design would have been hard to be conducted in a pragmatic clinical setting.

Treatment group mean SBP in the beginning: 134.72; SD: 13.38

Treatment group mean SBP at the end: 130.21; SD: 11.88

Control group mean SBP in the beginning: 129.27; SD: 14.01

Control group mean SBP at the end: 131.89; SD: 12.31

Treatment group mean DBP in the beginning: 80.66; SD: 8.22

Treatment group mean DBP at the end: 77.59; SD: 7.94

Control group mean DBP in the beginning: 75.70; SD: 7.50

Control group mean DBP at the end: 77.29; SD: 6.82

Intervention subgroup: screening and referral for management

  Berkowitz, 2017 [16]

• N = 5125

Design: DID

Duration: 31 months

Data source: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups

Participants: All patients.

Health center

Addressing unmet basic resource needs: Screening for unmet needs at clinic visits, and offering those who screen positive to meet with an advocate to help obtain resources, or receive brief information provision

Type: Screening and referral for management

Domain: Social and economic risk factors

The authors stated that a randomized design would have been hard to be conducted in a pragmatic clinical setting. The findings are more generalizable to other primary care settings than using RCTs.

SBP MD: − 2.6; 95% CI: (−3.5, − 1.7)

DBP MD: − 1.4; 95% CI: (− 1.9, − 0.9)

  Scharf, 2016 [46]

• N = 791

Design: DID

Duration: 24 months

Data Source: Primary

Region: America

Subpopulation: all genders and racial/ethnic groups aged 18 years and older

Participants: patients with serious mental illness

Health center

Primary and Behavioral Health Care Integration program: Screening and referral for general medical illness prevention and treatment, registry and tracking systems for general medical needs and outcomes, care management, and prevention and wellness services

Type: Screening and referral for management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

Treatment group SBP MD: − 14; SE: 1

Treatment group DBP MD: − 13; SE: 1

Control group SBP MD: − 13; SE: 2

Control group DBP MD: − 10; SE: 1

  Chang, 2016 [47]

• N = 138,788

Design: DID

Duration: 24 months

Data Source: Primary and secondary

Region: Europe

Subpopulation: all genders and racial/ethnic groups, aged 40–74 years

• Participants: All patients

Nation

Participated in The National (England) Health Service Check—a Cardiovascular risk assessment and management program: screening, tailored management strategies including lifestyle advice

Type: Screening and referral for management

Domain: CVD risk factors

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

SBP MD: − 2.51; 95% CI: (− 2.77, − 2.25)

DBP MD: − 1.46; 95% CI: (− 1.62, − 1.29)

  Yu, 2017 [48]

• N = 10,262

Design: PSM

Duration: 12 months

Data Source: Primary

Region: Asia

Subpopulation: all genders and racial/ethnic groups, aged less than 80 years

Participants: all hypertension patients

Health center

Risk assessment and management program for patients with hypertension in public primary care clinics: Standardized CVD-risk assessment, hypertensive complication screening as well as adherence to medications and lifestyles

Type: Screening and referral for management

Domain: Lifestyle

The authors stated that a randomized design would have been hard to be conducted in a pragmatic clinical setting.

Treatment group mean SBP in the beginning: 148.7; SD: 8.18

Treatment group mean SBP at the end: 136.85; SD: 9.64

Control group mean SBP in the beginning: 148.68; SD: 8.34

Control group mean SBP at the end: 137.68; SD: 10.48

Treatment group mean DBP in the beginning: 81.7; SD: 9.34

Treatment group mean DBP at the end: 77.58; SD: 8.37

Control group mean DBP in the beginning: 81.74; SD: 9.09

Control group mean DBP at the end: 77.6; SD: 8.56

  van de Vijver, 2016 [49]

• N = 2764

Design: DID

Duration: 18 months

Data Source: Primary

Region: Africa

Subpopulation: all genders and racial/ethnic groups

Participants: Patients with hypertension

Community

Awareness campaigns, household visits for screening, referral and treatment, promoting long-term retention in care:

Type: Screening and referral for management

Domain: Care

The authors did not justify why an RCT was not undertaken to evaluate the effectiveness of the intervention.

SBP MD: − 0.32; 95% CI: (− 2.48, 1.83)

DBP MD: 1.09; 95% CI: (− 0.29, 2.46)

  1. RCT, randomized clinical trial; DID, difference-in-difference; Treatment group, intervention or treatment group; OR, odds ratio; CI, confidence interval; PPCG, pre-post with a control group; BP, blood pressure; PHC, population health coordinator; SBP, systolic blood pressure; SD, standard deviation; DBP, diastolic blood pressure; MD, mean difference; DASH, Dietary Approaches to Stop Hypertension; PSM, propensity score matching; SE, standard error; CVD, cardiovascular disease