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Table 1 Descriptive data summarising the different clinical groups by malaria status

From: A morphometric and histological study of placental malaria shows significant changes to villous architecture in both Plasmodium falciparum and Plasmodium vivax infection

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*
  1. aComparison does not include controls; bNo data from UK controls, n = 9 * significant.