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. Author manuscript; available in PMC: 2009 Apr 14.
Published in final edited form as: Pain. 2008 Apr 9;139(1):5–14. doi: 10.1016/j.pain.2008.02.023

Table 2.

Demographics and clinical obstetrical variables for all all enrolled women (treatment-received, n = 158)

Group A (n = 110)* Group G (n = 48)** p-Value
Maternal age (year) 29.7 (5.3) 28.7 (5.1) >0.20
Maternal weight (kg) 76.9 (13.8) 78.0 (19.2) >0.20
Maternal height (cm) 163.1 (10.6) 164.8 (8.1) >0.20
Gestational age (weeks) 40.0 (1.1) 39.8 (1.1) >0.20
Cervical dilatation at CSE placement (cm) 0 [0,2] 2 [0,3] 0.0067
Time from CSE placement to delivery (min) 415 [270,600] 345 [225,518] 0.071
Induced labor (IL) (%) 34% 27% >0.20
Neonatal weight (kg) 3.280 (0.455) 3.255 (0.350) >0.20
Type of delivery 0.11
 Spontaneous vaginal delivery (n) 54 29
 Instrumental vaginal delivery (n) 35 16
 Cesarean delivery (n) 21 3

Data are presented as mean (SD), median [interquartiles] and count.

Group A: 304A homozygotes;

*

including 8 rejected cases.

Group G: 304A/G heterozygotes (n = 40) and 304G homozygotes (n = 8);

**

including 9 rejected cases.