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Table 1 Baseline characteristics of 1124 adults aged 18-89 according to quartiles of HOMA in Jiangsu from the China Health and Nutrition Survey (CHNS)

From: Interaction between physical activity and sleep duration in relation to insulin resistance among non-diabetic Chinese adults

Characteristics

Quartiles of HOMA a

 

Q1 b

Q2

Q3

Q4

p value for trend c

HOMA (units)

     

Median

0.45

0.85

1.33

2.33

 

Range

0.13-0.66

0.66-1.08

1.08-1.67

1.67-14.2

 

N

281

281

281

281

 

Total physical activity

(MET-hrs/week)d

185.1 (122.6)

167.6 (121.4)

160.7 (114.1)

144.7 (101.0)

< 0.001

Domestic activity

26.0 (24.7)

30.0 (25.5)

32.9 (25.9)

31.5 (28.1)

0.011

Occupational activity

148.8 (124.7)

126.4 (122.4)

117.3 (117.7)

102.0 (103.7)

< 0.001

Transportation activity

7.6 (11.0)

7.1 (12.2)

6.3 (8.1)

5.7 (7.5)

0.121

Leisure time activity

2.7 (13.6)

4.0 (14.6)

4.2 (13.7)

5.5 (16.9)

0.173

Age (years)

50.9 (14.0)

49.3 (13.7)

46.8 (14.3)

46.9 (14.7)

0.001

Male (%)

60.9

43.4

36.7

38.4

< 0.001

Education (%)

     

Primary school

42.7

45.2

43.9

35.6

0.021

High school

53.4

49.8

48.9

56.6

 

College

3.9

5.0

7.1

7.8

 

Urban residents (%)

22.1

31.0

36.7

35.6

< 0.001

Income (Yuan, per capita)

     

Low (< 5000)

42.9

36.4

35.0

28.9

0.005

Medium (5000-10000)

33.5

35.2

33.6

40.9

 

High (> 10000)

23.7

28.5

31.4

30.2

 

Current smokers (%)

36.8

27.4

18.5

15.7

< 0.001

Alcohol drinking (%)

47.0

31.7

29.5

25.3

< 0.001

Dietary intake

     

Total energy (kcal/d)

2603.0 (1140.3)

2464.6 (888.3)

2386.7 (1149.8)

2344.8 (804.0)

0.025

Fat (g/d)

63.7 (26.9)

69.5 (32.3)

64.3 (32.7)

66.6 (30.5)

0.142

WHR

0.85 (0.09)

0.85 (0.08)

0.86 (0.07)

0.88 (0.07)

< 0.001

Fasting glucose (mmol/L)

4.8 (0.6)

4.9 (0.5)

5.0 (0.6)

5.3 (0.7)

< 0.001

Fasting insulin (uU/ml)

2.0 (0.9)

4.0 (0.7)

6.1 (1.1)

11.7 (6.2)

< 0.001

hs-CRP (mmol/L)

1.4 (3.3)

1.3 (2.6)

1.3 (3.0)

1.8 (3.1)

0.159

Sleep duration (hours)

8.3 (1.1)

8.3 (1.2)

8.2 (1.1)

8.2 (1.2)

0.751

  1. aNumbers represent means (SD) unless otherwise indicated.
  2. bQ, quartile;
  3. cP-value for linear trend for continuous variables (general linear model, PROC MIXED in SAS) and for categorical variables (χ2 test for trend)
  4. dMET, metabolic equivalent