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Table 2 Median knowledge score towards prevention of chronic kidney disease of 374 patients with hypertension

From: Knowledge, attitudes and practices of hypertensive patients towards prevention and early detection of chronic kidney disease: a cross sectional study from Palestine

Variables Total
N = 374 (%)
Median knowledge scorea
[Q1-Q3]
Mean rank P-valueb
Gender
 Male 131 (35%) 20 [16–23] 186.3 0.877c
 Female 243 (65%) 19 [15–23] 188.1  
Age (years)
  < 65 247 (66) 20 [16–23] 201.1 0.001 c
  ≥ 65 127 (34) 19 [14–21] 161.1  
Residency
 Village 56 (15%) 20 [15–24] 187.5  
 City 301 (80.5%) 19 [16–23] 185.5 0.056d
 Refugee camp 17 (4.5%) 22 [18–24] 223.9  
Employment
 Employed 98 (26.2%) 21 [16–24] 198.2 0.252c
 Unemployed 276 (73.8%) 19 [16–23] 183.7  
Body Mass Index
 Normal 38 (10.2%) 22 [17–24] 212.5  
 Overweight 134 (35.8%) 18 [14–21] 155.2 < 0.001 d
 Obese 202 (54%) 21 [17–23] 204.3  
Marital status
 Married 296 (79.1%) 20 [16–23] 184.9 0.807c
 Unmarried 78 (20.9%) 20 [13–23] 188.2  
Monthly income (NIS e)
 Low (Less than 2000] 230 (61.5%) 19 [15–23] 180.9  
 Moderate (2000–5000) 129 (34.5%) 20 [16–23] 194.9 0.669d
 High (More than 5000) 15 (4%) 22 [18–23] 225.1  
Education Level
 Uneducated 22 (5.9) 19 [10–21] 140.6  
 Primary school 90 (24.1) 17 [12–22] 157.7 0.011 d
 High school 188 (50.3) 20 [17–23] 195.4  
 University 74 (19.8) 21 [18–24] 217.6  
Hypertension Duration (year)
  < 1 13 (3.5%) 21 [18–23] 200.7  
 1–3 93 (24.9%) 20 [15–23] 180.1 0.538d
 4–5 69 (18.4%) 18 [15–23] 176.0  
  ≥ 5 199 (53.2%) 20 [16–23] 194.1  
Therapy type
 Mono therapy 174 (46.5%) 20 [15–23] 183.9 0.549c
 Multi therapy 200 (53.5%) 20 [16–23] 190.6  
Total number of medications
  < 4 125 (33.4) 20 [16–22] 169.2 0.020 c
  ≥ 4 249 (66.6) 20 [15–23] 196.7  
Total number of comorbid diseases
 0 79 (21.1%) 20 [16–23] 190.9  
 1 82 (21.9%) 20 [15–23] 183.4  
 2 144 (38.5%) 20 [17–24] 196.8 0.446d
 3 54 (14.4%) 19 [14–23] 173.7  
  ≥ 4 15 (4.1%) 17 [13–21] 152.6  
  1. aKnowledge scale was a dichotomous scale of 30 items (range 0–30, high score meaning more correct and better knowledge)
  2. bThe p-values are bold where they are less than the significance level cut-off of 0.05
  3. cStatistical significance of differences calculated using the Mann-Whitney U test
  4. dStatistical significance of differences calculated using the Kruskal-Wallis test
  5. e1 new Israeli shekel (NIS) equals 0.279 US Dollar