Table 2. Consistency analysis of body mass index (BMI) and body weight perception of Chinese women of childbearing age, 2015.
| BMI category | Age (years) | Body weight perception category (%, 95%CI) | ||
| Underweight (%, 95%CI) | Normal (%, 95%CI) | Overweight/obese (%, 95%CI) | ||
| Underweight | 18–24 | 40.8 (29.9, 51.7) | 57.1 (46.3, 67.9) | 2.1 (0.7, 3.5) |
| 25–34 | 47.4 (42.8, 52.1) | 49.8 (45.0, 54.5) | 2.8 (0.9, 4.7) | |
| 35–49 | 48.0 (41.3, 54.7) | 49.6 (42.7, 56.4) | 2.4 (0.4, 4.4) | |
| Subtotal | 44.3 (38.5, 50.2) | 53.3 (47.6, 59.0) | 2.4 (1.3, 3.4) | |
| Normal | 18–24 | 5.9 (4.1, 7.7) | 69.5 (66.2, 72.9) | 24.6 (21.3, 27.9) |
| 25–34 | 6.5 (5.7, 7.4) | 71.5 (69.5, 73.4) | 22.0 (20.1, 23.9) | |
| 35–49 | 11.5 (10.3, 12.7) | 73.5 (71.9, 75.2) | 14.9 (13.7, 16.1) | |
| Subtotal | 8.6 (7.8, 9.3) | 71.9 (70.5, 73.2) | 19.5 (18.3, 20.8) | |
| Overweight/Obese | 18–24 | 1.4 (0.4, 2.5) | 35.2 (29.7, 40.8) | 63.3 (57.7, 69.0) |
| 25–34 | 1.2 (0.8, 1.7) | 34.8 (32.1, 37.5) | 64.0 (61.3, 66.7) | |
| 35–49 | 2.3 (1.9, 2.7) | 44.0 (42.1, 45.9) | 53.7 (51.8, 55.7) | |
| Subtotal | 1.9 (1.6, 2.3) | 40.6 (38.9, 42.4) | 57.4 (55.7, 59.2) | |