Table 4. Principal perinatal outcomes by level of proteinuria adjusted for age and ethnicity with risk ratios in comparison with PE 300 group (proteinuria 300- 499 mg/24 hours).

	Preeclampsia	Preeclampsia	Chronic Hypertension	Gestational Hypertension
	300-499 mg/day	≥500 mg/day
N	60	161	615	110
SGA (<10th adjusted centile), N (%)	24 (40.0%)	84 (52.5%)	122 (20.1%)	28 (25.7%)
Risk ratio		1.30 (0.93 to 1.82)	0.49 (0.35 to 0.69)***	0.63 (0.40 to 0.97)*
SGA (<5th adjusted centile), N (%)	19 (31.7%)	79 (49.4%)	81 (13.3%)	18 (16.5%)
Risk ratio		1.56 (1.04 to 2.33)*	0.48 (0.32 to 0.72)***	0.48 (0.32 to 0.72)*
Total deaths, N (%)	2 (3.3%)	4 (2.5%)	21 (3.4%)	0 (0.0%)
Preterm delivery (<37w), N (%)	15 (25.0%)	99 (61.5 %)	83 (13.5%)	10 (9.1%)
Risk ratio		2.41 (1.56 to 3.89)***	0.60 (0.38 to 0.95)*	0.51 (0.23 to1.10)
Spontaneous preterm delivery, N (%)	2 (3.3%)	4 (2.5%)	32 (5.2%)	4 (3.6%)
Iatrogenic preterm delivery, N (%)	13 (21.7%)	95 (59.0%)	51 (8.3%)	6 (5.5%)
Risk ratio		2.72 (1.66 to 4.48)***	0.41 (0.24 to 0.71)***
Preterm delivery < 34 weeks, N (%)	8 (13.3%)	43 (26.7%)	41 (6.7%)	0 (0.0%)
Risk ratio		1.97 (1.01 to 3.85)*	0.64 (0.32 to 1.28)
Surfactant use, N (%)	2 (3.3%)	21 (13.0%)	15 (2.4%)	0 (0.0%)
Mechanical Ventilation, N (%)	4 (6.7%)	20 (12.4%)	15 (2.4%)	1 (0.9%)
Respiratory distress syndrome, N (%)	5 (8.3%)	30 (18.6%)	18 (2.9%)	0 (0.0%)

Risk ratio: comparison with preeclampsia with proteinuria of 300–499 mg/24 hours; *P≤0.05; **P≤0.01; ***P≤0.001