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Table 1 Sociodemographic and anthropometric variables of study participants

From: Establishment of dry chemistry based reference intervals of renal function test parameters for the adult population of Kaski District, Nepal

Characteristic Variables

Male

Female

p-value

Total

N (%)

180 (50)

180 (50)

 

360 (100)

Age (years)

40.86 ± 14.68

39.90 ± 14.43

0.534c

40.38 ± 14.55

Age groups (years)

 18–29

47 (26.1)

52 (28.9)

0.708c

99 (27.5)

 30–39

39 (21.7)

34 (18.9)

 

73 (20.3)

 40–49

35 (19.4)

41 (22.8)

 

76 (21.1)

 50–65

59 (32.8)

53 (29.4)

 

112 (31.1)

Blood pressure (mmHg)

 Systolic

117.53 ± 10.10

115.69 ± 10.57

0.091c

116.61 ± 10.36

 Diastolic

77.46 ± 8.53

76.76 ± 8.51

0.436c

77.11 ± 8.51

Height (cm)

163.27 ± 8.48

154.49 ± 7.60

< 0.001a

158.88 ± 9.17

BMI (kg/m2)

23.92 ± 2.67

23.71 ± 2.29

0.374c

23.82 ± 2.28

BMI (kg/m2)

 Normal weight

54 (30)

59 (32.8)

0.446c

113 (31.4)

 Over weight

55 (30.6)

57 (31.7)

 

112 (31.1)

 Obese I

71 (39.4)

64 (35.6)

 

135 (37.5)

Waist (cm)

92.56 ± 10.26

86.82 ± 11.78

< 0.001a

89.69 ± 11.40

W/H ratio

1.02 ± 0.12

0.90 ± 0.09

< 0.001a

0.96 ± 0.12

Race

 Aryan

125 (69.4)

120 (66.7)

0.749c

245 (68.1)

 Mongolian

27 (15)

34 (18.9)

 

61 (16.9)

 Dalit

19 (10.6)

16 (8.9)

 

35 (9.7)

 Newar

9 (5.0)

10 (5.6)

 

19 (5.3)

Diet

 Vegetarian

15 (8.3)

31 (17.2)

0.012b

46 (12.8)

 Non-vegetarian

165 (91.7)

149 (82.8)

 

314 (87.2)

Alcohol Intake

 No

60 (33.3)

152 (84.4)

< 0.001a

212 (58.9)

 Yes

120 (66.7)

28 (15.6)

 

148 (41.1)

Smoking

 No

155 (86.1)

179 (99.4)

< 0.001a

334 (92.8)

 Yes

25 (13.9)

1 (0.6)

 

26 (7.2)

Serum urea (mmol/L)

8.9 ± 2.4

7.9 ± 2.4

< 0.001a

8.4 ± 2.5

Serum creatinine (μmol/L)

76.7 ± 15.4

56.4 ± 12.1

< 0.001a

66.5 ± 17.1

Height-creatinine ratio

196.2 ± 43.2

252.3 ± 51.2

< 0.001a

224.2 ± 55.0

Serum sodium (mmol/L)

141.1 ± 2.9

141.2 ± 2.8

0.827c

141.2 ± 2.8

Serum potassium (mmol/L)

4.4 ± 0.4

4.3 ± 0.4

0.114c

4.3 ± 0.4

  1. The results are presented as mean ± SD for continuous variables and n (%) for categorical variables ap < 0.001, bp < 0.05, cp > 0.05 (two tailed); groups were compared using Students t test for quantitative variables and Chi square test for categorical variables. For the conversion of SI unit to conventional unit divide the concentration of urea value by 0.357, creatinine value by 88.4 and sodium and potassium value by 1