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Table 3 Medication use by intervention groups during pregnancy

From: Treatment of obstructive sleep apnea in high risk pregnancy: a multicenter randomized controlled trial

Medication use, no. (%)

CPAP group

N = 153

Usual-care group

N = 157

p value

Antihypertensive agent use, no. (%)

12 (7.8)

12 (7.6)

0.947

 Methyldopa, no. (%)

11 (7.2)

12 (7.6)

0.307

  Initial dose (mg/day), median (IQR)

500 (250, 750)

500 (500, 750)

0.129

  Final dose (mg/day), median (IQR)

750 (500, 750)

500 (250, 750)

0.339

 Hydralazine, no. (%)

3 (25.0)

8 (66.7)

0.041

  Initial dose (mg/day), median (IQR)

62.5 (37.5, 87.5)

50.0 (37.5, 75)

0.441

  Final dose (mg/day), median (IQR)

75 (37.5, 200)

75 (50, 75)

0.267

 Combined methyldopa and hydralazine, no. (%)

2 (16.7)

8 (66.7)

0.013

 Additional 3rd anti-hypertensive medication, no. (%)

1 (8.3)

3 (25.0)

0.273

 MgSO4 stabilization during delivery, no. (%)

4 (33.3)

10 (83.3)

0.013

Insulin—no. (%)

33 (21.6)

32 (20.4)

0.798

 Insulin dose (u/day), median (IQR)

32 (3, 160)

46 (6, 140)

0.217

Other medications

   

 Aspirin, no. (%)

35 (22.9)

40 (25.5)

0.593

 Calcium supplement, no. (%)

53 (34.6)

50 (31.9)

0.602

 Vitamin D supplement, no. (%)

6 (4.8)

2 (1.7)

0.142

  1. CPAP continuous positive airway pressure; IQR interquartile range