Fig. 1

Association between severity of nausea and vomiting of pregnancy (NVP) and offspring anthropometry from birth to 72 months (m) in boys (1a-1c) and girls (1d-1f). The regression co-efficient in z-score for offspring length/height (1a and 1d), weight (1b and 1e) and body mass index (1c and 1f) with 95% confidence intervals (CI) for each NVP group (mild-moderate: inverted black triangle; severe: green triangle; severe with hospitalisation: red dot) at each time point, relative to the reference group (no NVP, represented by the horizontal black line at 0 on the y-axis) is shown. Adjustment was made for maternal age, ethnicity, pre-pregnancy BMI, maternal education, parity, gestational age and smoking during pregnancy. Number of children contributing data at each time point is shown in the table. Statistically significant differences are highlighted by a light grey background with p values indicated as follows: No NVP vs mild-moderate: + p < 0.05, ++ p < 0.01; no NVP vs severe: * p < 0.05, ** p < 0.01; no NVP vs severe with hospitalization: # p < 0.05, ## p < 0.01