Table 4.
Clustering of overweight and obesity for reproductive-age couples in rural China, 2010–2014a.
| At least one of the couple being overweight or obese | Both of the couple being overweight or obese | |||||
|---|---|---|---|---|---|---|
| Prevalence | Crude OR (95%CI) | Adjusted OR (95%CI) b | Prevalence | Crude OR (95%CI) | Adjusted OR (95%CI)b | |
| Total | 45.8 (45.7–45.9) | 9.9 (9.8–10.0) | ||||
| Male age groups | ||||||
| 15–29 | 34.0 (33.8–34.2) | 1.00 | 1.00 | 4.9 (4.8–5.0) | 1.00 | 1.00 |
| 30–39 | 51.2 (51.1–51.4) | 2.04 (2.02–2.06) | 1.54 (1.52–1.57) | 11.5 (11.4–11.6) | 2.54 (2.48–2.59) | 1.75 (1.70–1.80) |
| 40–49 | 55.6 (55.3–55.8) | 2.43 (2.40–2.47) | 1.50 (1.47–1.54) | 14.9 (14.7–15.2) | 3.42 (3.34–3.51) | 1.74 (1.67–1.82) |
| Female age groups | ||||||
| 15–29 | 34.4 (34.2–34.6) | 1.00 | 1.00 | 4.9 (4.8–5.0) | 1.00 | 1.00 |
| 30–39 | 52.5 (52.4–52.6) | 2.11 (2.09–2.13) | 1.67 (1.65–1.69) | 12.1 (12.0–12.2) | 2.65 (2.60–2.70) | 2.04 (1.99–2.09) |
| 40–49 | 56.1 (55.8–56.3) | 2.43 (2.39–2.47) | 1.79 (1.75–1.84) | 15.3 (15.1–15.5) | 3.49 (3.40–3.57) | 2.36 (2.27–2.46) |
| Male ethnic origin | ||||||
| Han | 46.8 (46.6–46.9) | 1.00 | 1.00 | 10.1 (10.0–10.2) | 1.00 | 1.00 |
| Uyghur | 40.3 (39.6–41.0) | 0.77 (0.75–0.79) | 1.54 (1.50–1.57) | 9.9 (9.5–10.3) | 0.97 (0.92–1.01) | 2.22 (2.13–2.32) |
| Zhuang | 28.3 (27.6–29.1) | 0.45 (0.43–0.47) | 0.58 (0.56–0.60) | 3.8 (3.6–4.1) | 0.35 (0.33–0.37) | 0.50 (0.47–0.54) |
| Miao | 30.0 (28.3–31.6) | 0.49 (0.45–0.52) | 0.93 (0.89–0.97) | 4.5 (4.1–4.8) | 0.41 (0.38–0.45) | 0.93 (0.86–1.02) |
| Manchu | 61.8 (60.7–62.9) | 1.84 (1.76–1.93) | 1.11 (1.05–1.17) | 16.8 (15.9–17.7) | 1.79 (1.68–1.90) | 0.99 (0.93–1.05) |
| Mongol | 61.0 (59.8–62.1) | 1.78 (1.69–1.86) | 1.38 (1.31–1.44) | 17.5 (16.7–18.3) | 1.88 (1.77–1.99) | 1.40 (1.32–1.49) |
| Yi | 33.0 (31.2–34.9) | 0.56 (0.52–0.61) | 1.04 (0.98–1.12) | 4.6 (4.1–5.2) | 0.43 (0.38–0.48) | 0.92 (0.81–1.05) |
| Hui | 29.3 (28.3–30.2) | 0.47 (0.45–0.49) | 1.19 (1.14–1.24) | 4.8 (4.5–5.3) | 0.45 (0.42–0.49) | 1.42 (1.32–1.52) |
| Tujia | 40.6 (39.5–41.6) | 0.78 (0.78–0.81) | 0.83 (0.79–0.87) | 7.0 (6.5–7.6) | 0.67 (0.62–0.73) | 0.73 (0.67–0.80) |
| Tibetan | 32.1 (30.0–34.3) | 0.54 (0.49–0.59) | 0.93 (0.85–1.02) | 7.2 (6.2–8.4) | 0.69 (0.58–0.82) | 1.25 (1.05–1.50) |
| Female ethnic origin | ||||||
| Han | 46.8 (46.6–46.9) | 1.00 | 1.00 | 10.1 (10.0–10.2) | 1.00 | 1.00 |
| Uyghur | 40.4 (39.6–41.1) | 0.77 (0.75–0.79) | 1.50 (1.41–1.59) | 9.9 (9.5–10.3) | 0.97 (0.93–1.02) | 2.21 (2.01–2.42) |
| Zhuang | 28.9 (28.2–29.6) | 0.46 (0.45–0.48) | 0.62 (0.59–0.65) | 3.8 (3.6–4.1) | 0.35 (0.33–0.37) | 0.51 (0.46–0.55) |
| Miao | 30.2 (28.7–31.8) | 0.49 (0.46–0.53) | 0.89 (0.82–0.96) | 4.7 (4.3–5.1) | 0.44 (0.40–0.48) | 0.85 (0.76–0.94) |
| Manchu | 62.3 (61.2–63.4) | 1.88 (1.79–1.97) | 1.17 (1.11–1.24) | 17.4 (16.4–18.3) | 1.86 (1.74–1.99) | 1.07 (1.00–1.16) |
| Mongol | 61.5 (60.4–62.6) | 1.82 (1.74–1.90) | 1.38 (1.31–1.46) | 17.8 (16.9–18.7) | 1.92 (1.81–2.04) | 1.43 (1.33–1.54) |
| Yi | 33.9 (32.2–35.7) | 0.58 (0.54–0.63) | 1.09 (1.00–1.18) | 5.1 (4.5–5.7) | 0.47 (0.42–0.53) | 0.96 (0.85–1.09) |
| Hui | 29.8 (28.8–30.8) | 0.48 (0.46–0.51) | 0.89 (0.85–0.94) | 5.0 (4.6–5.3) | 0.46 (0.43–0.50) | 0.98 (0.90–1.06) |
| Tujia | 41.1 (40.0–42.2) | 0.79 (0.76–0.83) | 0.87 (0.83–0.92) | 7.1 (6.4–8.5) | 0.68 (0.62–0.74) | 0.75 (0.68–0.82) |
| Tibetan | 32.1 (30.1–34.2) | 0.54 (0.49–0.59) | 0.91 (0.83–1.00) | 7.4 (6.4–8.5) | 0.70 (0.60–0.82) | 1.21 (1.03–1.42) |
| Region | ||||||
| North | 58.5 (58.1–58.9) | 3.05 (2.99–3.11) | 3.78 (3.69–3.85) | 15.2 (14.9–15.4) | 3.78 (3.66–3.91) | 4.68 (4.52–4.85) |
| Northeast | 56.9 (56.5–57.3) | 2.86 (2.81–2.92) | 2.78 (2.71–2.83) | 15.0 (14.7–15.3) | 3.73 (3.60–3.87) | 3.31 (3.19–3.44) |
| East | 51.9 (51.6–52.2) | 2.34 (2.31–2.37) | 2.37 (2.34–2.41) | 11.7 (11.5–11.9) | 2.81 (2.72–2.90) | 2.80 (2.72–2.89) |
| Central | 40.6 (40.4–40.8) | 1.48 (1.46–1.50) | 1.52 (1.50–1.54) | 7.2 (7.1–7.3) | 1.65 (1.60–1.70) | 1.64 (1.59–1.69) |
| South | 31.6 (31.3–31.8) | 1.00 | 1.00 | 4.5 (4.4–4.6) | 1.00 | 1.00 |
| Northwest | 32.1 (31.7–32.4) | 1.02 (1.01–1.04) | 1.54 (1.51–1.57) | 5.9 (5.7–6.0) | 1.33 (1.28–1.38) | 2.05 (1.97–2.14) |
| Southwest | 40.8 (40.4–41.1) | 1.49 (1.47–1.52) | 1.78 (1.74–1.81) | 7.8 (7.6–7.9) | 1.78 (1.72–1.85) | 2.01 (1.93–2.09) |
| Male education | ||||||
| Primary school or below | 42.3 (41.9–42.8) | 1.00 | 1.00 | 9.5 (9.3–9.8) | 1.00 | 1.00 |
| Junior high school | 45.9 (45.7–46.0) | 1.16 (1.13–1.18) | 0.99 (0.96–1.01) | 10.4 (10.3–10.5) | 1.10 (1.06–1.13) | 0.96 (0.93–1.00) |
| High school | 44.7 (44.3–45.0) | 1.10 (1.07–1.13) | 1.02 (0.99–1.05) | 9.1 (8.9–9.3) | 0.95 (0.92–0.99) | 0.98 (0.94–1.03) |
| College or higher | 50.0 (49.7–50.3) | 1.36 (1.33–1.39) | 1.21 (1.17–1.26) | 8.6 (8.4–8.8) | 0.89 (0.86–0.92) | 0.95 (0.89–1.00) |
| Female education | ||||||
| Primary school or below | 43.8 (43.3–44.3) | 1.00 | 1.00 | 10.0 (9.8–10.3) | 1.00 | 1.00 |
| Junior high school | 45.7 (45.5–45.8) | 1.08 (1.06–1.10) | 0.95 (0.93–0.97) | 10.3 (10.2–10.4) | 1.03 (0.99–1.06) | 0.94 (0.91–0.97) |
| High school | 44.6 (44.3–44.9) | 1.03 (1.01–1.06) | 0.96 (0.93–0.99) | 9.0 (8.8–9.2) | 0.89 (0.86–0.92) | 0.94 (0.90–0.99) |
| College or higher | 50.0 (49.7–50.3) | 1.28 (1.26–1.31) | 1.10 (1.07–1.14) | 8.6 (8.4–8.7) | 0.84 (0.81–0.87) | 0.88 (0.84–0.94) |
| GDP level | ||||||
| Tertitle 1 | 43.5 (43.3–43.7) | 1.00 | 1.00 | 9.4 (9.3–9.5) | 1.00 | 1.00 |
| Tertitle 2 | 47.7 (47.4–47.9) | 1.18 (1.17–1.20) | 0.99 (0.97–1.00) | 10.6 (10.4–10.7) | 1.14 (1.11–1.17) | 0.94 (0.92–0.96) |
| Tertitle 3 | 47.6 (47.4–47.8) | 1.18 (1.17–1.19) | 1.14 (1.12–1.15) | 10.3 (10.1–10.4) | 1.10 (1.08–1.13) | 1.19 (1.17–1.22) |
OR, odds ratio; CI, confidence interval. aData are shown as prevalence (95% confidence interval), and all estimates were weighted using the China Population Census in 2010. Overweight and obesity were defined according to the Chinese criteria: overweight, 24.0 ≤ BMI ≤ 27.9 kg/m2 and obesity, BMI ≥ 28.0 kg/m2. bAdjusted for all other factors in the table.