Table 2.

Antihypertensive medication classes and agents selected across HDP type.

Medication class agent	All (N = 1,276)	Eclampsia/severe preeclampsia (N = 260)	Chronic with superimposed preeclampsia (N = 354)	Preeclampsia (N = 425)	Gestational hypertension (N = 237)	P value
Beta blockers	1,011 (79.2%)	222 (85.4%)	299 (84.5%)	329 (77.4%)	161 (67.9%)	<0.001
Labetalol	956 (74.9%)	213 (81.9%)	289 (81.6%)	309 (72.7%)	145 (61.2%)	<0.001
Metoprolol	46 (3.6%)	8 (3.1%)	14 (4.0%)	15 (3.5%)	9 (3.8%)	0.946
Propranolol	26 (2.0%)	6 (2.3%)	6 (1.7%)	6 (1.4%)	8 (3.4%)	0.388
Calcium channel blockers	406 (31.8%)	57 (21.9%)	158 (44.6%)	126 (29.7%)	65 (27.4%)	<0.001
Nifedipine	378 (29.6%)	54 (20.8%)	142 (40.1%)	123 (28.9%)	59 (24.9%)	<0.001
Amlodipine	23 (1.8%)	3 (1.2%)	12 (3.4%)	3 (0.71%)	5 (2.1%)	0.035
Diltiazem	11 (0.86%)	2 (0.77%)	8 (2.3%)	0 (0.0%)	1 (0.42%)	0.003
Diuretics	86 (6.7%)	15 (5.8%)	33 (9.3%)	25 (5.9%)	13 (5.5%)	0.176
Furosemide	45 (3.5%)	12 (4.6%)	13 (3.7%)	13 (3.1%)	7 (3.0%)	0.711
HCTZ	32 (2.5%)	3 (1.2%)	17 (4.8%)	6 (1.4%)	6 (2.5%)	0.012
Vasodilators	275 (21.6%)	88 (33.9%)	83 (23.5%)	85 (20.0%)	19 (8.0%)	<0.001
Hydralazine	261 (20.5%)	84 (32.3%)	80 (22.6%)	83 (19.5%)	14 (5.9%)	<0.001
Nitroglycerin	17 (1.3%)	5 (1.9%)	3 (0.85%)	3 (0.71%)	6 (2.5%)	0.178
Alpha-Agonist	70 (5.5%)	10 (3.9%)	31 (8.8%)	9 (2.1%)	20 (8.4%)	<0.001
Methyldopa	56 (4.4%)	7 (2.7%)	28 (7.9%)	5 (1.2%)	16 (6.8%)	<0.001
Clonidine	16 (1.3%)	3 (1.2%)	5 (1.4%)	4 (0.94%)	4 (1.7%)	0.854
Number of antihypertensive medication classes used						<0.001
One	839 (65.8%)	156 (60.0%)	185 (52.3%)	298 (70.1%)	200 (84.4%)
Two	322 (25.2%)	81 (31.2%)	102 (28.8%)	105 (24.7%)	34 (14.3%)
Three or more	115 (9.0%)	23 (8.8%)	67 (18.9%)	22 (5.2%)	3 (1.3%)