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Fig. 1 | Malaria Journal

Fig. 1

From: Effects of Plasmodium falciparum infection on umbilical artery resistance and intrafetal blood flow distribution: a Doppler ultrasound study from Papua New Guinea

Fig. 1

Umbilical artery resistance index (a), middle cerebral artery pulsatility index (b) and cerebroplacental Doppler ratio (c) change with gestational age and regression curves. Black lines are the means (µ) of the mixed effects model regression (given in Eqs. 1a, 2a, 3a). The shaded areas are the intervals between which 95% (grey) and 80% (light green) of the data are located, equivalent to the 2.5th/97.7th and 10th/90th centiles and corresponding to Eqs. (1b, 2b, 3b) calculated as per Royston [18]

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