Table 1 Age-adjusted means and prevalence of CHD risk factors by parity in Chinese women.

From: Parity and Risk of Coronary Heart Disease in Middle-aged and Older Chinese Women

 

Parity

Difference per increase of 1 birtha

P for trend

1(N = 9283)

2(N = 5906)

3(N = 3158)

≥4(N = 1860)

Age (years)

55.83 (55.71, 55.96)

64.10 (63.94, 64.25)

69.86 (69.65, 70.07)

74.53 (74.26, 74.80)

6.59 (6.50, 6.67)

0.000

BMI (kg/m2)

23.75 (23.66, 23.84)

24.41 (24.32, 24.51)

25.00 (24.85, 25.14)

24.99 (24.78, 25.19)

0.48 (0.41, 0.56)

0.000

WHR

0.853 (0.851, 0.855)

0.865 (0.863, 0.868)

0.874 (0.870, 0.877)

0.877 (0.872, 0.882)

0.009 (0.007, 0.010)

0.000

SBP (mmHg)

135.58 (135.01, 136.15)

137.90 (137.31, 138.50)

138.87 (138.96, 140.79)

138.11 (136.83, 139.38)

1.28 (0.80, 1.76)

0.000

DBP (mmHg)

77.58 (77.26, 77.90)

78.37 (78.04, 78.70)

78.78 (78.27, 79.29)

77.81 (77.10, 78.52)

0.25 (–0.02, 0.52)

0.066

Triglycerides (mmol/L)

1.56 (1.54, 1.59)

1.58 (1.55, 1.61)

1.55 (1.50, 1.60)

1.47 (1.41, 1.54)

–0.023 (–0.047, 0.001)

0.061

LDLc (mmol/L)

2.80 (2.78, 2.83)

2.78 (2.75, 2.80)

2.81 (2.78, 2.85)

2.78 (2.73, 2.83)

–0.003 (–0.022, 0.016)

0.764

HDLc (mmol/L)

1.61 (1.60, 1.62)

1.54 (1.53, 1.56)

1.49 (1.47, 1.51)

1.45 (1.42, 1.47)

–0.05 (–0.06, –0.04)

0.000

Total cholesterol (mmol/L)

5.03 (5.00, 5.06)

4.91 (4.88, 5.94)

4.84 (4.80, 4.89)

4.75 (4.68, 4.81)

–0.09 (–0.12, –0.07)

0.000

Glucose (mmol/L)

5.84 (5.79, 5.88)

5.99 (5.95, 6.04)

6.05 (5.99, 6.12)

6.15 (6.06, 6.25)

0.11 (0.07, 0.14)

0.000

Education (>primary, %)

92.78 (92.12, 94.43)

76.71 (75.65, 77.78)

62.05 (60.11, 64.00)

41.07 (38.13, 44.01)

0.40 (0.38, 0.42)

0.000

Divorced/widowed (%)

15.12 (14.09, 16.18)

14.40 (13.56, 15.24)

15.45 (14.29, 16.61)

20.54 (18.73, 22.35)

1.13 (1.07, 1.20)

0.000

Manual occupation (%)

52.31 (51.11, 53.51)

67.46 (66.36, 68.56)

81.67 (80.48, 82.86)

91.67 (90.71, 92.63)

2.26 (2.14, 2.37)

0.000

Current smoking (%)

1.26 (1.00, 1.53)

1.62 (1.30, 1.95)

3.15 (2.44, 3.86)

4.86 (3.52, 6.19)

1.63 (1.43, 1.87)

0.000

Passive smoking (%)

32.60 (31.47, 33.72)

29.09 (27.88, 30.29)

28.29 (26.41, 30.16)

29.84 (27.16, 32.51)

0.93 (0.89, 0.98)

0.005

Current Drinking (%)

9.40 (8.80, 9.94)

11.64 (10.74, 12.55)

13.89 (12.20, 15.58)

15.54 (12.89, 18.19)

1.24 (1.15, 1.33)

0.000

Physical activity (%)

74.30 (73.22, 75.39)

75.32 (74.20, 76.44)

73.90 (72.17, 75.64)

66.29 (63.67, 68.91)

0.91 (0.87, 0.95)

0.000

Menopause (%)

90.62 (90.25, 90.98)

90.76 (89.82, 91.69)

89.54 (86.77, 92.31)

71.17 (66.49, 75.86)

0.78 (0.69, 0.89)

0.000

Ever use contraceptive (%)

19.06 (18.07, 20.06)

19.71 (18.67, 20.75)

16.83 (15.36, 18.30)

10.79 (9.19, 12.39)

0.85 (0.81, 0.90)

0.000

Ever use HRT (%)

3.83 (3.31, 4.35)

2.74 (2.32, 3.16)

1.89 (1.38, 2.40)

0.88 (0.44, 1.32)

0.66 (0.57, 0.75)

0.000

Abortion (%)

74.61 (73.50, 75.73)

65.80 (64.57, 67.04)

60.63 (58.69, 62.57)

52.12 (49.33, 54.91)

0.72 (0.69, 0.76)

0.000

Stillbirth (%)

1.26 (1.01,1.51)

2.48 (2.06,2.91)

2.39 (1.73,3.04)

3.29 (2.15,4.43)

1.34 (1.16,1.55)

0.000

Family history of CHD (%)

20.46 (19.29, 21.64)

11.22 (10.32, 12.12)

7.12 (6.06, 8.18)

5.41 (4.18, 6.64)

0.57 (0.52, 0.61)

0.000

Hypertension (%)

56.48 (55.34, 57.62)

59.47 (58.22, 60.72)

62.47 (60.45, 64.49)

60.02 (57.06, 62.99)

1.10 (1.05, 1.15)

0.000

Diabetes (%)

16.23 (15.21, 17.24)

21.69 (20.61, 22.77)

24.83 (23.16, 26.50)

25.38 (23.07, 27.70)

1.22 (1.16, 1.29)

0.000

  1. Values are means and prevalences (95% confidence intervals). All means, prevalences, regression coefficients and odds ratios are age-adjusted, except for age.
  2. aFor continuous variables, regression coefficients of unit increase in the variables per increase of one birth, for dichotomous variables, odds ratio for increase in one birth.