Table 2 Prevalence of chronic kidney disease according to patients’ characteristics

Overall CKD prevalence

3929 (38.7)

2001 (43.0)

1928 (35.1)

Age, mean (± SD), year

67.5 ± 11.3

66.7 ± 11.4

68.4 ± 11.2

Diabetes mellitus

 Type 2, No (%)

 Type 1, No (%)

3757 (39.4)

172 (27.9)

1915 (44.0)

86 (28.5)

1842 (35.6)

86 (27.3)

Diabetes duration, mean (± SD), year

16.1 ± 8.9

16.1 ± 9.0

16.1 ± 8.9

Comorbidities

 Hypertension, No (%)

 Dyslipidemia, No (%)

 Hyperuricemia, No (%)

3199 (48.5)​

​​1,893 (40.1)​

363 (70.2)

1617 (54.5)

941 (44.9)

165 (69.6)

1582 (43.7)

952 (36.3)

198 (70.7)

Smoking

 Non-smoker, No (%)

 Active smoker, No (%)

 Weaned, No (%)

2858 (36.9)

575 (41.5)

496 (49.2)

969 (40.7)

546 (42.2)

486 (49.7)

1889 (35.2)

29 (32.2)

10 (33.3)

Clinical data

 eGFR mL/min/1.73 m², median (± IQR)

 μalbuminuria mg/mmol, median (± IQR)

 BMI, mean (± SD), kg/m²

  < 25, No (%)

  25-29.9, No (%)

  30-34.9, No (%)

  ≥ 35, No (%)

HbA_1c (%), mean (± SD)

42.9 (29.9; 55.1)

750 (208.3; 1,975.3)

28.6 ± 5.6

946 (40.5)

1658 (38.6)

1202 (37.5)

123 (40.7)

8.2 ± 1.7

44.6 (30.8; 56.7)

940 (300; 2,000)

27.6 ± 5.5

608 (42.6)

912 (42.0)

451 (45.3)

30 (50.0)

8.2 ± 1.6

40.9 (28.9; 53.1)

600 (135.5; 1,653)

29.9 ± 5.5

338 (37.1)

746 (35.1

751 (34.0)

93 (38.4)

8.3 ± 1.8

Sedentary, N (%)

1834 (38.7)

787 (44.2)

1047 (36.2)

Educational level

 Unschooled, No (%)

 Primary school, No (%)

 Secondary school, No (%)

 University, No (%)

 Not specified, No (%)

758 (42.9)

991 (36.6)

693 (28.9)

231 (28.7)

1256 (51.0)

133 (44.2)

502 (44.5)

504 (33.9)

174 (33.4)

688 (56.5)

625 (42.6)

489 (30.9)

189 (20.8)

57 (20.1)

568 (45.5)