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Table 1 Demographic and clinical characteristics of the study population

From: Association between ß2-adrenergic receptor gene polymorphisms and adverse events of ritodrine in the treatment of preterm labor: a prospective observational study

Characteristics

Total (n = 186)

Adverse Event Group (n = 33)

No Adverse Event Group (n = 153)

P-value

Age, years

30.88 ± 4.70

31.21 ± 3.45

30.81 ± 4.48

.635

Body mass index, kg/m2

24.50 ± 3.19

24.97 ± 2.98

24.40 ± 3.23

.354

Gestational age at start of therapy, weeks

29.60 ± 3.91

28.97 ± 4.23

29.74 ± 3.85

.308

Maximum infusion rate, mg/min

0.083 ± 0.030

0.096 ± 0.044

0.080 ± 0.026

.006

Comorbid conditions, N (%)

 Twin or multiple gestation

16 (8.6)

4 (12.1)

12 (7.2)

.491

 Diabetes mellitus

13 (7.0)

3 (9.1)

10 (6.5)

.729

 Uterine infection

15 (8.1)

1 (3.0)

14 (9.2)

.475

  1. Data are expressed as means ± SDs, unless otherwise specified