Table 3.
Geometric mean of dietary folate intake among Chinese women of childbearing age by region (95% CI, µg day–1)
| Region | Crude | Adjusted* |
|---|---|---|
| South, overall | 211.0 (201.3–221.1) | 212.9 (202.8–223.6) † |
| East | ||
| Overall | 213.7 (200.8–227.5) | 215.1 (201.0–230.3) † |
| Urban | 200.1 (182.2–219.7) | 205.0 (185.5–226.5) |
| Rural | 228.2 (210.3–247.5) | 225.9 (204.7–249.3) † |
| West | ||
| Overall | 208.2 (194.1–223.4) | 210.4 (196.4–225.5) † |
| Urban | 205.5 (184.5–229.0) | 201.4 (181.3–223.7) |
| Rural | 211.0 (193.0–230.8) | 220.8 (198.4–245.8) † |
| North, overall | 189.2 (181.8–196.9) | 188.0 (180.8–195.6) |
| East | ||
| Overall | 192.3 (183.5–201.4) | 190.9 (181.8–200.4) |
| Urban | 194.5 (180.7–209.5) | 199.2 (185.3–214.2) |
| Rural | 190.0 (179.5–201.2) | 181.5 (167.9–196.2) ‡ |
| West | ||
| Overall | 183.2 (169.9–197.4) | 182.7 (170.8–195.5) |
| Urban | 203.9 (185.2–224.6) | 211.2 (191.3–233.0) § |
| Rural | 164.3 (147.0–183.7) | 159.1 (144.5–175.3) |
*
Geometric means of dietary folate intake were controlled for age, body mass index, education level and multivitamins and/or folic acid supplement use.
†
P < 0.01 for the comparison with the North.
‡
P < 0.01 for the comparison with the west in the South/North.
§
P < 0.01 for the comparison with rural areas in the same region.