Fig. 5

Gestational age of the first detection of vivax malaria to predict hypertensive disorders of pregnancy. Black line: all women; blue line: primigravidae, yellow line: multigravidae. Dashed curves represent 95% confidence intervals. There was a non-significant interaction between gestational age and vivax infection for both gestational hypertension (a) and pre-eclampsia/eclampsia (b). However, vivax malaria was not significantly associated with any HDoP at any point across pregnancy, and there was no evidence of effect modification by gravidity