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. 2014 Jan 21;11(1):e1001589. doi: 10.1371/journal.pmed.1001589

Table 1. Demographics of women in the total cohort comparing women with and without adverse maternal outcomes (N = 2,081).

Characteristic Women with Adverse Outcomes (n = 401 women) Women without Adverse Outcomes (n = 1,680 women) p-Value*
Demographics (within 48 h of eligibility)
Maternal age at EDD (years)mean (±SD) 27·9 (±5·9) 28·5 (±6·2) 0·17
Parity ≥1n (%) 183 (45·6%) 939 (55·9%) <0·01
Gestational age at eligibility (wk)median [interquartile range] 35·3 [30·7–38·1] 37·1 [34·1–38·8] <0·01
Multiple pregnancyn (%) 17 (4·2%) 57 (3·4%) 0·41
Smoking in this pregnancyn (%) 25 (6·2%) 72 (4·3%) 0·08
Pre-eclampsia description
Pre-eclampsia n (%) 320 (79·8%) 1016 (60·5%) <0·01
Other HDP n (%) 81 (20·2%) 664 (39·5%) <0·01
Clinical measures (within 24 h of eligibility)
Systolic BPmedian [interquartile range] 170 [150–186] 150 [140–170] <0·01
Diastolic BPmedian [interquartile range] 110 [100–120] 100 [90–110] <0·01
Worst dipstick proteinuriamedian [interquartile range] 2+ [1+–3+] 1+ [trace–3+] <0·01
Number of symptomsmedian [interquartile range] 1 [0–2] 0 [0–1] <0·01
Interventions at any time during admission
Corticosteroid administrationn (%) 180 (44·9%) 525 (31·3%) <0·01
Antihypertensive medications administeredn (%) 386 (96·3%) 1,560 (92·9%) 0·13
MgSO4 administeredn (%) 271 (67·6%) 677 (40·3%) <0·01
Pregnancy outcomes
Admission-to-delivery interval (all cases) (d)median [interquartile range] 1 [1][4] 1 [1][5] 0·02
GA on delivery (wk)median [interquartile range] 35·7 [31·7–38·3] 37·6 [35·3–39·1] <0·01
Delivery at <34+0 wk GAn (%) 160 (39.9%) 290 (17.3%) <0·01
Cesarean deliveryn (%) 110 (27.4%) 625 (37.2%) <0·01
Birth weight (g)median [interquartile range] 2,100 [1,303–2,800] 2,700 [2,000–3,150] <0·01
Birth weight <3rd percentile (N babies)n (%) 64 (16·0%) 284 (16·9%) 0·66
Intrauterine fetal death(≥20+0 wk and/or ≥500 g)n (%) 54 (13·5%) 94 (5·6%) <0·01
Neonatal death (before discharge)n (%) 26 (6·5%) 42 (2·5%) <0·01

Results for continuous variables presented as mean (± standard deviation [SD]) when data normally distributed or median [interquartile range] for skewed data.

*

p-Values calculated using chi-squared test for categorical variables and Student's t-test or Mann-Whitney U for continuous variables.

EDD, estimated date of delivery; GA, gestational age.