Table 1 Characteristics of participants
Variables | Non-breastfeeding (n = 905) | Breastfeeding(n = 9451) | P – value |
|---|---|---|---|
Age (year) (n = 10,356) | < 0.001 | ||
< 50s | 18.61 (15.36–22.36) | 8.17 (7.36–9.05) | |
50–59 | 54.12 (50.31–57.88) | 36.69 (35.48–37.91) | |
60–69 | 19.61 (16.93–22.60) | 29.12 (28.07–30.20) | |
≥ 70 | 7.66 (6.03–9.69) | 26.02 (24.94–27.14) | |
Height (cm) (n = 10,350) | 156.04 ± 0.23 | 154.19 ± 0.08 | < 0.001 |
Weight (kg) (n = 10,349) | 57.67 ± 0.39 | 57.79 ± 0.12 | 0.761 |
Marital state (n = 10,352) | < 0.001 | ||
Single | 0.00 (0.00–0.00) | 0.00 (0.00–0.12) | |
Married | 79.74 (76.54–82.60) | 70.97 (69.78–72.13) | |
Divorced or separated | 20.26 (17.40–23.46) | 28.99 (27.83–30.18) | |
Age at menopause (year) (n = 9999) | 47.93 ± 0.23 | 48.96 ± 0.07 | < 0.001 |
Age at menarche (year) (n = 10,273) | 14.76 ± 0.09 | 15.53 ± 0.03 | < 0.001 |
Number of children (n = 10,356) | 3.54 ± 0.07 | 4.66 ± 0.03 | < 0.001 |
No. breastfed children (n = 9451) | 2.85 ± 0.02 | ||
Breastfeeding duration (months) (n = 9352) | 45.57 ± 0.60 | ||
House Income (n = 10,280) | < 0.001 | ||
1 (low) | 14.01 (11.49–16.98) | 30.20 (28.92–31.50) | |
2 (middle low) | 27.75 (24.40–31.36) | 26.48 (25.36–27.64) | |
3 (middle high) | 25.71 (22.40–29.32) | 22.64 (21.57–23.75) | |
4 (high) | 32.53 (28.84–36.44) | 20.68 (19.52–21.88) | |
Education level (n = 10,339) | < 0.001 | ||
≤ 9 years | 36.43 (32.74–40.28) | 69.56 (68.10–70.98) | |
10 ~ 12 years | 39.99 (36.23–43.87) | 21.27 (20.16–22.42) | |
≥ 13 years | 23.58 (20.15–27.40) | 9.17 (8.33–10.07) | |
Occupation (n = 10,347) | 0.246 | ||
No | 53.80 (49.72–57.83) | 56.31 (54.90–57.70) | |
Yes | 46.20 (42.17–50.28) | 43.69 (42.30–45.10) | |
Residence (n = 10,356) | < 0.001 | ||
Urban | 85.52 (82.06–88.42) | 75.83 (73.11–78.36) | |
Rural | 14.48 (11.58–17.94) | 24.17 (21.64–26.89) | |
Oral Contraceptives use (n = 10,346) | < 0.001 | ||
No | 86.76 (83.90–89.18) | 77.74 (76.73–78.71) | |
Yes | 13.24 (10.82–16.10) | 22.26 (21.29–23.27) | |
Regular exercise (n = 10,345) | 0.014 | ||
No | 79.15 (75.69–82.23) | 83.10 (82.01–84.14) | |
Yes | 20.85 (17.77–24.31) | 16.90 (15.86–17.99) | |
Drinking status (n = 10,289) | < 0.001 | ||
No | 40.38 (36.76–44.11) | 48.88 (47.54–50.23) | |
Past | 25.76 (22.39–29.44) | 23.17 (22.10–24.28) | |
Yes | 33.86 (30.08–37.85) | 27.94 (26.78–29.13) | |
Smoking status (n = 10,297) | < 0.001 | ||
No | 87.65 (84.65–90.13) | 92.33 (91.58–93.03) | |
Past | 4.35 (3.03–6.21) | 3.50 (3.05–4.02) | |
Yes | 8.00 (5.90–10.77) | 4.17 (3.66–4.74) |