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Table 1 Baseline characteristics by age and gender

From: Heterogeneity by age and gender in the association of kidney function with mortality among patients with diabetes - analysis of diabetes registry in Singapore

Characteristics

Overall N = 36,556

< 65 years

≥65 years

Male n = 9376

Female n = 8974

Male n = 7966

Female n = 10,240

Age (years), Mean (SD)

64.7 (10.0)

56.2 (5.9)

57.0 (5.5)

72.3 (5.9)

73.2 (6.1)

Ethnicity, n (%)

     

 Chinese

27,185 (74.1)

6790 (72.4)

5733 (63.9)

6466 (81.2)

8196 (80.0)

 Malay

4640 (12.7)

1188 (12.7)

1779 (19.8)

673 (8.5)

1000 (9.8)

 Indian

3464 (9.5)

1032 (11.0)

1113 (12.4)

586 (7.4)

733 (7.2)

 Others

1267 (3.5)

366 (3.9)

349 (3.9)

241 (3.0)

311 (3.0)

Rental housing, n (%)

2183 (6.0)

447 (4.8)

548 (6.1)

501 (6.3)

687 (6.7)

Smoking, n (%)

2873 (7.9)

1653 (17.6)

135 (1.5)

943 (11.8)

142 (1.4)

Body mass index (kg/m2), Mean (SD)d

26.2 (4.0)

26.7 (3.8)

27.1 (4.6)

25.2 (3.4)

25.6 (4.0)

Lipid medications, n (%)

31,409 (85.9)

7826 (83.5)

7578 (84.4)

6923 (86.9)

9082 (88.7)

Hypertension, n (%)

34,987 (95.7)

8763 (93.5)

8306 (92.6)

7819 (98.2)

10,099 (98.6)

History of cardiovascular disease, n (%)

6755 (18.5)

1607 (17.1)

682 (7.6)

2461 (30.9)

2005 (19.6)

Albuminuria, n (%)

     

 Abnormal

20,971 (57.4)

4491 (47.9)

4726 (52.7)

4840 (60.8)

6914 (67.5)

eGFR (mL/min per 1.73 m2), Mean (SD)

84.6 (19.5)

91.3 (15.5)

96.6 (15.5)

73.7 (17.8)

76.5 (19.0)

eGFR (mL/min per 1.73 m2), n (%)

     

  < 30

268 (0.7)

11 (0.1)

15 (0.2)

92 (1.2)

150 (1.5)

 30 - < 60

4452 (12.2)

402 (4.3)

330 (3.7)

1745 (21.9)

1975 (19.3)

 60 - < 90

14,562 (39.8)

3128 (33.4)

1722 (19.2)

4581 (57.5)

5131 (50.1)

 90 - < 120

17,274 (47.3)

5835 (62.2)

6907 (77)

1548 (19.4)

2984 (29.1)

SBP (mmHg), Mean (SD)e

130.1 (11.5)

128.6 (11.0)

128.7 (11.7)

130.4 (11.5)

132.6 (11.4)

DBP (mmHg), Mean (SD)f

69.1 (7.2)

73.5 (6.7)

69.3 (7.0)

67.7 (6.7)

66.0 (6.3)

HDL cholesterol (mmol/L), Mean (SD)g

1.37 (0.4)

1.22 (0.3)

1.44 (0.3)

1.30 (0.3)

1.51 (0.4)

LDL cholesterol (mmol/L), Mean (SD)h

2.31 (0.7)

2.41 (0.7)

2.40 (0.7)

2.18 (0.6)

2.23 (0.6)

Triglycerides (mmol/L), Mean (SD)i

1.42 (0.7)

1.52 (0.8)

1.43 (0.7)

1.33 (0.6)

1.41 (0.6)

  1. Abbreviations: CVD cardiovascular disease, SBP Systolic blood pressure, DBP Diastolic blood pressure, HDL high-density lipoprotein, LDL low-density lipoprotein
  2. aData are count (percentage) and mean (SD). Note: Missing values imputed in mean (SD) calculation except for body mass index
  3. d5025 (13.7%) missing values were imputed with the national cutoff of body mass index between moderate and high risk of weight-related health problems [3] (27.5 kg/m2)
  4. e716 (1.96%) missing values were imputed with the mean value of systolic blood pressure (132.3 mmHg)
  5. f719 (1.97%) missing values were imputed with the mean value of diastolic blood pressure (69.5 mmHg)
  6. g152 (0.42%) missing values were imputed with the mean value of HDL cholesterol (1.314 mmol/L)
  7. h205 (0.56%) missing values were imputed with the mean value of LDL cholesterol (2.393 mmol/L)
  8. i87 (0.24%) missing values were imputed with the mean value of triglycerides (1.541 mmol/L)
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BMC Nephrology

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