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Table 2 Characteristics of study population by number of parity category

From: Number of parity is associated with low-grade albuminuria in middle-aged and elderly Chinese women

 

Number of Parity

0

1

2

≥ 3

n (%)

820 (12.6)

4236 (65.2)

981 (15.1)

458 (7.1)

Urinary ACR (mg/g)

8.0 (5.8–11.5)

8.0 (5.8–11.2)

8.6 (6.3–11.9) #, &

9.3 (6.4–13.1) #, &

Age (years)

54.3 ± 7.1#

53.4 ± 5.6 &

58.1 ± 8.7 #, &

65.3 ± 10.9 #, &

BMI (kg/m2)

23.2 ± 3.2

23.4 ± 3.4

24.1 ± 3.2 #, &

24.6 ± 3.8 #, &

WC (cm)

79.3 ± 10.0

79.3 ± 8.6

82.3 ± 9.1 #, &

84.8 ± 9.4 #, &

SBP (mmHg)

123.6 ± 15.3

123.0 ± 15.6

127.0 ± 16.0 #, &

131.8 ± 17.1 #, &

DBP (mmHg)

74.1 ± 9.1

73.8 ± 9.4

74.6 ± 9.5

74.6 ± 9.7

Current smoking [n (%)]

21 (2.8) #

37 (0.9) &

11 (1.1) &

9 (2.0) #

Current drinking [n (%)]

14 (2.0) #

45 (1.1) &

16 (1.7)

6 (1.3)

TG (mmol/L)

1.25 (0.92–1.78) #

1.18 (0.87–1.69) &

1.28 (0.97–1.84) #

1.43 (0.99–1.99) #, &

TC (mmol/L)

5.43 ± 1.24 #

5.24 ± 1.27 &

5.25 ± 1.27 &

5.22 ± 1.26 &

HDL-C (mmol/L)

1.42 ± 0.36

1.39 ± 0.37

1.36 ± 0.35 &

1.28 ± 0.35 #, &

LDL-C (mmol/L)

3.26 ± 0.97 #

3.15 ± 0.98 &

3.16 ± 0.96

3.15 ± 0.95

FPG (mmol/L)

5.35 (4.94–5.82)

5.35 (4.95–5.80)

5.50 (5.07–6.00) #, &

5.60 (5.13–6.09) #, &

Fasting insulin (μIU/ml)

7.10 (5.10–9.85)

7.10 (5.20–9.70)

7.80 (5.80–10.8) #, &

8.20 (5.90–11.1) #, &

γ-GGT (U/L)

18.0 (14.0–26.0) #

17.0 (13.0–24.0) &

19.0 (14.0–27.0) #

19.0 (14.0–26.0) #

eGFR (ml/min per 1.73 m2)

103.2 ± 23.0 #

106.0 ± 23.2 &

102.3 ± 20.8 #

96.9 ± 22.2 #, &

Physical activity (MET-h/week)

10.5 (0.0–36.0)

24.8 (11.8–49.0)

28.0 (12.0–49.0)

21.0 (10.5–42.0) #

Prior history of CVD [n (%)]

14 (1.7)

81 (1.9)

48 (4.9) #, &

42 (9.7) #, &

High school or higher education [n (%)]

463 (70.6)

2902 (69.2)

379 (39.2) #, &

60 (13.3) #, &

Spontaneous abortion [n (%)]

27 (3.3) #

265 (6.3) &

73 (7.4) &

57 (12.5) #, &

Menopause [n (%)]

139 (25.5)

1111 (26.6)

189 (19.5) #, &

54 (11.8) #, &

  1. 1. Data were means ± SD or medians (interquartile ranges) for skewed variables or numbers (proportions) for categorical variables; P-values were for the ANOVA or χ2 analyses across the groups
  2. 2. #P <  0.05 compared with participants with one live births (parity number equal to the 1 group); & P <  0.05 compared with participants with no live birth (parity number equal to the 0 group)
  3. 3. ACR albumin to creatinine ratio, BMI body mass index, WC waist circumference, SBP systolic blood pressure, DBP diastolic blood pressure, TG triglycerides, TC total cholesterol, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, FPG fasting plasma glucose, eGFR estimated glomerular filtration rate, γ-GGT γ-glutamyltransferase