Table 2.
Anaemia and iron deficiency status overall and by trimester
|
Total (N = 1500) |
Second trimester (N = 897) |
Third trimester (N = 603) |
|
|---|---|---|---|
| Anaemia status | |||
| No anaemia | 933 (62·2%; 60·0%, 64·7%) | 584 (65·1%; 62·0%, 68·2%) | 349 (57·9%; 53·9%, 61·8%) |
| Anaemia | 567 (37·8%; 35·3%, 40·3%) | 313 (34·9%; 31·8%, 38·0%) | 254 (42·1%; 38·2%, 46·0%) |
| Mild anaemia | 413 (27·5%; 25·3%, 29·8%) | 238 (26·5%; 23·6%, 29·4%) | 175 (29·0%; 25·4%, 32·6%) |
| Moderate anaemia | 152 (10·1%; 8·6%, 11·7%) | 73 (8·1%; 6·3%, 9·9%) | 79 (13·1%; 10·4%, 15·8%) |
| Severe anaemia | 2 (0·1%; 0·01%, 0·3%) | 2 (0·2%; 0·0%, 0·5%) | 0·0 (0·0%) |
| Iron deficiency statusa | |||
| Iron replete | 784 (52·3%; 49·8%, 54·9%) | 537 (59·9%; 56·7%, 63·1%) | 247 (41·1%; 37·2%, 45.0%) |
| Iron deficient | 714 (47·7%; 45·1%, 50·2%) | 360 (40·1%; 36·9%, 43·3%) | 354 (58·9%; 55·0%, 62·8%) |
| Iron deficiency anaemia statusa | 361 (24·1%; 21·9%, 26·3%) | 181 (20·2%; 17·6%, 22·8%) | 180 (30·0%; 26·2%, 33·6%) |
Data are presented as n (%; 95% confidence interval)
Anaemia status is classified as follows: no anaemia (haemoglobin ≥ 110 g/L), mild anaemia (haemoglobin < 110 and ≥ 100 g/L), moderate anaemia (haemoglobin < 100 and ≥ 70 g/L), and severe anaemia (haemoglobin < 70 g/L)
Iron status is classified as iron replete (ferritin ≥ 15 µg/L, or ferritin ≥ 30 µg/L in the presence of inflammation, C-reactive protein, CRP > 5 mg/L) or iron deficient (ferritin < 15 µg/L, or ferritin < 30 µg/L in the presence of inflammation, CRP > 5 mg/L)
Iron deficiency anaemia is defined as haemoglobin < 110 g/L combined with ferritin < 15 µg/L, or ferritin < 30 µg/L in the presence of inflammation (CRP > 5 mg/L)
aN = 1498 total, with N = 897 in the second trimester and N = 601 in the third trimester