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Table 2 The median knowledge score of 386 diabetic patients related to the prevention and early detection of chronic kidney disease

From: The relationship between diabetes-related knowledge and kidney disease knowledge, attitudes, and practices: a cross-sectional study

Variable

Total: N = 386 (%)

Median knowledge score a

[Q1-Q3]

Mean rank

P value b

Age category (years)

    

< 55

160(41.5)

12 (10–16)

224.37

< 0.001 c

≥ 55

226 (58.5)

10(8–14)

171.65

Gender

    

Male

211(54.7)

11(8–14)

183.43

0.051c

Female

175 (45.3)

11(9–15)

205.64

BMI category

    

Normal

84 (21.8)

12(9–14)

203.43

0.043 d

Overweight

181 (46.9)

11(9–15)

202.94

Obese

121 (31.3)

11(8–13)

172.48

Residency

    

Refugee camp

32 (8.3)

12(9–15)

206.39

< 0.001 d

Village

119 (30.8)

9(7–13)

151.85

City

235 (60.9)

12(10–15)

212.84

Marital status

    

Married

291 (75.4)

11(9–14)

197.47

0.002 d

Widow

52 (13.5)

10(5–13)

143.64

Divorced

19 (4.9)

12(9–17)

220.89

Unmarried

24 (6.2)

13(11–15)

231.65

Educational level

    

No formal education

45 (11.7)

10(6–12)

139.73

< 0.001 d

Elementary school

99 (25.6)

9(7–11)

133.02

High school

137 (35.5)

12(9–14)

204.78

Collage/University

105 (27.2)

13(11–17)

258.85

Employment

    

Employed

227 (58.8)

12(9–15)

211.58

< 0.001c

Unemployed

159 (41.2)

10(7–14)

167.69

Monthly income (NIS e )

    

Low (Less than 2000)

177 (45.9)

11(8–14)

171.88

< 0.001 d

Moderate (2000–5000)

160 (41.5)

12(9–14)

202.65

High (More than 5000)

49 (12.7)

13(10–17)

241.71

Smoking

    

Yes

165 (42.7)

11(9–14)

186.79

0.306c

No

221 (57.3)

11(8–15)

198.51

Duration of DM (years)

    

< 7

223 (57.8)

11(9–15)

199.07

0.250c

≥ 7

163 (42.2)

11(8–14)

185.88

Number of oral medications for DM

    

Mon therapy

240 (62.2)

11(8–14)

189.25

0.108d

Multi therapy

71 (18.4)

11(8–14)

182.70

No oral medications

75 (19.4)

12(10–15)

217.33

Use of insulin

    

Yes

240 (62.2)

11(8–14)

188.89

0.297c

No

146 (37.8)

11(9–15)

201.07

Last HbA1c

    

< 7

71 (18.4)

12(10–15)

214.82

0.074c

≥ 7

315 (81.6)

11(8–14)

188.70

Comorbidities

    

Yes

205 (53.1)

10(8–13)

175.51

0.001 c

No

181 (46.9)

12(10–15)

213.87

Total number of chronic diseases (other than DM)

    

0

181 (46.9)

12(10–15)

213.87

< 0.001 d

1

110 (28.5)

11(9–14)

193.45

2

67 (17.4)

11(8–14)

179.34

≥ 3

28 (7.2)

8(6–10)

95.89

Total number of medications other than DM medications

    

< 4

303 (78.5)

12(9–15)

201.59

0.006 c

≥ 4

83 (21.5)

10(8–13)

163.96

  1. Abbreviations: BMI: body mass index, NIS: New Israeli shekel, HbA1c: hemoglobin A1c
  2. a Knowledge scale contains 24 items (range 0–24, the higher the score, the better knowledge)
  3. b cut-off level of significance was 0.05
  4. c Mann‒Whitney U test was used to detect statistical significance
  5. d Kruskal‒Wallis test was used to detect statistical significance
  6. e 1NIS equals 0.31US Dollar