Table 4 Multiple linear regression analysis for the factor associated with extent of nighttime systolic blood pressure dipping in hypertensive patients

Age (per 1 year)

-0.0508

0.0174

0.004

Female

1.0285

0.479

0.032

Regular physical activity

-0.2346

0.438

0.592

Body mass index (per 1 kg/m2)

0.0388

0.062

0.532

Current smoking

1.5535

0.6188

0.012

Alcohol drinking

0.7468

0.4793

0.119

Taking antihypertensive drug

0.7231

0.4542

0.112

Medical history of diabetes mellitus

-1.0269

0.529

0.052

Medical history of cardiovascular disease^a

-0.2341

0.615

0.704

Total cholesterol (per 1 mg/dL)

0.0171

0.005

< 0.001

eGFR (per 1 ml/min/1.73m2)

0.0183

0.0106

0.084

24-h mean SBP (per 1 mmHg)

-0.1171

0.0158

< 0.001

Office SBP (per 1 mmHg)

0.0322

0.0119

0.007

Sleep duration (per 1 min)

-0.0036

0.0021

0.081

Sleep quality (per 1 point increase)

0.7622

0.2052

< 0.001