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Table 1 The relation between MDKT and sociodemographic and clinical factors

From: Diabetes-related knowledge in diabetic haemodialysis patients: a cross-sectional study from Palestine

VariableNumber (%), n = 147Median scores of MDKT (1st percentile–3rd percentile)P value
Age category
 Age ≤ 6078 (53.1)9.0 (8.0–10.0)0.126 a
 Age > 6069 (46.9)10.0 (8.0–11.0)
Gender
 Male76 (51.7)10.0 (8.0–11.0)0.078a
 Female71 (48.3 )9.0 (8.0–10.0)
Body mass index
 Underweight (< 18.5)1 (0.7)NA0.528b
 Normal range (18.5–24.9)38 (25.9)9.5 (8.0–10.0)
 Preobese (overweight) (25–29.9)43 (29.3)10.0 (8.0–11.0)
 Obese (≥ 30)65 (44.2)9.0 (8.0–10.0)
Residency
 Village85 (57.8)9.0 (8.0–10.0)0.002b
 City47 (32)10.0 (9.0–11.0) 
 Palestinian refugee camp15 (10.2)8.0 (7.0–10.0)
Living status
 Live with family141 (95.9)9.0 (8.0–10.5.0)0.062a
 Live alone6 (4.1)8.5 (6.8–9.0)
Education level
 No formal education18 (12.2)9.0 (7.0–10.0)0.251b
 Finished Primary school37 (25.2)9.0 (8.0–10.0)
 Finished high school64 (43.5)9.0 (8.0–11.0)
 College, university or post graduate28 (19)10.0 (8.3–11.0)
Marital status
 Single, widow, divorced29 (19.7)9.0 (8.0–10.0)0.527a
 Married118 (80.3)9.0 (8.0–11.0)
Occupation
 Unemployed132 (89.8)9.0 (8.0–10.0)0.612a
 Employed15 (10.2)9.0 (8.0–11.0)
Household income (month)
 Low (less than 550 US$)77 (52.4)9.0 (7.5–10.0)0.023b
 Moderate (550–1400 US$)57 (38.8)10.0 (8.0–10.5)
 High (more than 1400 US$)13 (8.8)11.0 (8.0–11.0)
Smoking
 Not smoker115 (78.2)9.0 (8.0–10.0)0.294a
 Smoker32 (21.8)10.0 (8.0–11.0)
Duration of dialysis (year)
 Less than 4 years91 (61.9)9.0 (8.0–10.0)0.878a
 4 years or more56 (38.1)9.0 (8.0–10.8)
Duration of diabetes (year)
 1–3 years8 (5.4)7.5 (7.0–11.3)0.509b
 4–5 years3 (2)8.0 (7.0–NA)
 More than 5 years136 (92.5)9.0 (8.0–10.0)
Frequency of dialysis (session/week)
 2 sessions or less19 (12.9)9.0 (7.0–11.0)0.301a
 3 sessions or more128 (87.1)9.0 (8.0–10.0)
Treatment hours per session
 Less than 4 hours125 (85)9.0 (8.0–10.5)0.177a
 4 hours or more22 (15)9.0 (7.0–10.0)
Kidney transplant
 Yes3 (2)9.0 (7.0–NA)0.967a
 No144 (98)9.0 (8.0–10.0)
Total chronic diseases
 None7 (4.8)10.0 (9.0–10.0)0.946b
 One49 (33.3)9.0 (8.0–11.0)
 Two48 (32.7)9.0 (8.0–10.0)
 Three or more43 (29.3)9.0 (8.0–11.0)
Total chronic medications
 Less than 895 (64.6)9.0 (8.0–10.0)0.719a
 8 or more52 (35.4)9.5 (8.0–10.0)
Drugs taking
 Takes drugs alone95 (64.6)9.0 (8.0–11.0)0.235a
 Takes drugs by others52 (35.4)9.0 (8.0–10.0)
HbA1c
 Controlled94 (63.9)9.0 (8.0–11.0)0.630a
 Uncontrolled53 (36.1)9.0 (8.0–10.0)
  1. US$, US dollars; NA, not available; HbA1c, glycated haemoglobin; MKDT, Michigan Diabetic Knowledge Test
  2. aStatistical significance of differences was calculated by using the Mann–Whitney U test
  3. bStatistical significance of differences was calculated by using the Kruskal–Wallis test