Indicator | Sample | Total | First trimester | Second trimester | Third trimester | P value |
---|---|---|---|---|---|---|
Hemoglobin: mean (SD) | All pregnancies | 118.38 (11.52) | 126.78 (10.20) | 118.93 (11.27) | 117.06 (11.32) | < 0.0011 |
Singletons | 118.43 (11.49) | 126.86 (10.23) | 118.99 (11.25) | 117.10 (11.26) | < 0.0011 | |
Multiple gestations | 116.47 (12.88) | 123.44 (7.91) | 117.17 (11.73) | 114.86 (13.98) | 0.011 | |
Serum ferritin: median (lower quartile-upper quartile) | All pregnancies | 20.60 (11.79–36.97) | 54.39 (34.5–94.01) | 28.60 (16.40–50.50) | 16.70 (10.20–27.00) | < 0.0012 |
Singletons | 20.57 (11.7–36.80) | 54.20 (34.37–93.35) | 28.74 (16.40–50.49) | 16.63 (10.20–26.9) | < 0.0012 | |
Multiple gestations | 23.65 (13.9–44.44) | 75.7 (35.30–125.6) | 25.0 (13.9–55.25) | 19.7(12.1–35.00) | < 0.0012 |