Table 1 Descriptive data summarising the different clinical groups by malaria status
Clinical group | Diagnosis | Maternal age at delivery (years, mean +/− SD) | Estimated gestational age at delivery (weeks, mean +/− SD) | Median parity (range) | Median number of malaria episodes (range) | No. of cases with pure Pf N = 26 (% cases) | No. of cases with pure Pv N = 5 (% cases) | Mixed Pf + Pv N = 9 (% cases) | Mean placental weight at delivery/g (SD) | Birth weight/g (SD) | Haematocrit (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
CONTROLS N = 27 | UK + Thai/Karen controls | 29.6 (6.2) | 38.2 (2.42) | 2 (0–5) | 0 | - | - | - | 493 (127) | 2951 (457)b | 30.1 (3.21)b |
TREATED MALARIA N = 26 | Malaria infection during pregnancy but not at delivery | 28.0 (6.7) | 39.6 (1.21) | 2 (0–8) | 1 (1–6) | 17 (65.4%) | 3 (11.5%) | 6 (23.1%) | 524 (130) | 2923 (322) | 27.0 (2.64) |
ACTIVE MALARIA N = 14 | Active placental malaria at delivery | 24.7 (6.5) | 39.1 (1.59) | 0 (0–4) | 1 (1–7) | 9 (64.3%) | 2 (14.3%) | 3 (21.4%) | 474 (116) | 2801 (511) | 27.2 (3.13) |
p value across groups | - | 0.084 | 0.09 | 0.048 | 0.83a | 1.0a | 1.0a | 1.0a | 0.56 | 0.692 | 0.0034* |