Table 1 Baseline characteristics of the study participants and clusters (N = 2466)
Variable | Control period N = 1430 | Intervention period N = 1036 |
|---|---|---|
Individual level summary | Â | Â |
Age in completed years (mean, sd) | 24.6 (±5.7) | 24.2 (±5.5) |
 Below 20 | 261 (18.3 %) | 221 (21.3 %) |
 20–24 | 548 (38.3 %) | 400 (38.6 %) |
 25–29 | 409 (28.6 %) | 278 (26.8 %) |
 30–34 | 101 (7.1 %) | 76 (7.3 %) |
 ≥ 35 | 111 (7.8 %) | 61 (5.9 %) |
Parity(mean, sd) | 2.1 (2.0) | 1.9 (1.9) |
 Nullipara | 372 (26.0 %) | 277 (26.7 %) |
 1 | 335 (23.4 %) | 256 (24.7 %) |
 2 | 223 (15.6 %) | 194 (18.7 %) |
 3 | 179 (12.5 %) | 110 (10.6 %) |
 4 | 140 (9.8 %) | 91 (8.8 %) |
 5+ | 181 (12.7 %) | 108 (10.4 %) |
Gestational age at enrolment (mean, sd) | 32.4 (3.4) | 32.1 (3.3) |
Antenatal Hb in g/dl (mean, sd) | 11.40 (1.44) | 11.65 (1.28) |
Antenatal anaemia (Hb<11.0 g/dl)a | 512 (36.1 %) | 279 (27.4 %) |
HIV positive | 122 (8.5 %) | 71 (6.9 %) |
Cluster level summary | Â | Â |
 Cluster size (mean, sd) | 238 (166) | 173 (169) |
 Age in years (mean, sd) | 24.5 (0.44) | 24.5 (0.87) |
 Years at school (mean, sd) | 7.6 (0.60) | 7.5 (0.75) |
 Parity (mean, sd) | 2.1 (0.23) | 2.0 (0.44) |
 Antenatal anaemia (Hb<11.0 g/dl)a (mean, sd) | 36.7 (8.1) | 30.7 (7.5) |
 HIV positive (mean, sd) | 8.2 (2.0) | 6.3 (1.4) |