Table 1. Demographic and reproductive health characteristics among pregnant women — 6 provinces in China, 2014–2018.
| Variables |
Non-anemia (N=119,951)
X±SD |
Anemia (N=86,802)
X±SD |
Total (N=206,753)
X±SD |
t | P |
| Note: The six provinces (with the selected districts) are: Hebei (Xinhua and Zhengding), Liaoning (Lishan, Tiedong and Taian), Hunan (Yueyanglou and Yueyang), Fujian (Haicang and Jimei), Sichuan (Gongjing and Rong County) and Yunnan (Tonghai and Huaning). Taian stopped surveillance in 2016, so Tiedong County became the participant since then.
Abbreviation: ANC=antenatal care, Hb=hemoglobin. | |||||
| Hb (g/L) | 126.72±10.08 | 103.32±7.23 | 116.90±14.63 | ||
| Gestation week of the first ANC | 14.05±6.85 | 14.56±6.55 | 14.26±6.73 | −16.80 | <0.001 |
| Maternal age | 28.03±4.61 | 27.85±4.68 | 27.95±4.64 | 8.88 | <0.001 |
| Gravidity | 2.00±1.10 | 2.06±1.10 | 2.03±1.10 | −12.77 | <0.001 |
| Parity | 0.51±0.57 | 0.55±0.58 | 0.53±0.57 | −17.91 | <0.001 |
| Number of ANC examinations | 7.62±3.40 | 8.41±2.99 | 7.95±3.26 | −54.45 | <0.001 |
| Number of Hb tests | 3.57±1.85 | 4.37±1.91 | 3.91±1.91 | −95.76 | <0.001 |
| Week of delivery | 39.07±3.05 | 39.12±2.35 | 39.09±2.78 | −4.22 | <0.001 |