Table 2 Association of peripheral blood malaria infection with elevated umbilical artery resistance index (>90th centile)

Peripheral malaria infection prior to Doppler scan^b

 Any species

1.8 (0.8–3.9)

0.17

1.7 (0.8–3.9)

0.20

 P.f.

2.3 (1.0–5.1)

0.048

2.3 (1.0–5.2)

0.047

 P.v.

–

–

–

–

 P.f. (sub)

2.3 (0.7–7.3)

0.15

2.1 (0.7–6.5)

0.20

Peripheral malaria infection at any stage in pregnancy (as a measure of exposure)^c

 Any species

2.0 (1.0–4.0)

0.05

1.9 (0.9–4.0)

0.07

 P.f.

2.4 (1.1–4.9)

0.021

2.4 (1.1–4.9)

0.024

 P.v.

1.6 (0.6–4.9)

0.37

1.6 (0.5–5.0)

0.42

 P.f. (sub)

2.7 (1.1–7.0)

0.04

2.6 (1.0–6.6)

0.05

Cumulative malaria detections with any species (as measure of exposure)^c

 1

1.8 (0.9–4.0)

0.12

1.8 (0.8–3.9)

0.15

 ≥2

2.6 (0.7–9.2)

0.14

2.6 (0.7–9.8)

0.15