Fig. 1: Multimodal trajectories reveal distinct changes across trimesters.
From: Biometrics of complete human pregnancy recorded by wearable devices

a Median value (black solid) and quantiles (color) shaded for nightly peak temperature (blue), nightly trough temperature (blue), 24-h peak activity (orange), nightly peak Heart Rate (HR; green), nightly peak Heart Rate Variability (HRV; red), nightly peak Respiratory Rate (RR ; purple). All pregnancies were aligned by ‘date know pregnant’ (DKP, green dashed line) and ended within 3 weeks of the 40-week line (40 W, black dashed). b Pregnancy profiles displayed as boxplots (box = interquartile range (IQR) 1st to 3rd quantile, median = center line, lower whiskers = 1.5 * IQR below the 1st quantile, upper whiskers = 1.5 * IQR above the 3rd quantile) for 97 full-term pregnancies by trimester (trimester: -1 = -13 to 0 weeks prior to onset, 1 = 0 - 12 weeks of pregnancy, 2 = 13 - 26 weeks of pregnancy, 3 = 27 to 40 weeks of pregnancy, 4 = 40 to 53 weeks) by data modality. Bonferroni corrected p-value annotations for 4 comparisons: * : 2.5e-3 < p <= 0.0125, **: 2.5e-4 < p, ***: 2.5e-5 < p, ****: p <= 2.5e-6.