Table 2 Labor pain behavior related outcomes according to GCH1 haplotypes
From: Different SNP combinations in the GCH1 gene and use of labor analgesia
Non-carriers (n = 481) | Heterozygous (n = 180) | Homozygous (n = 15) | ||
|---|---|---|---|---|
Cervical dilation at arrival to the delivery unita, cm | 4.3 ± 2.5 | 4.1 ± 2.3 | 5.7 ± 2.2* | |
Cervical dilation at request of epidural analgesiab, cm | 5.8 ± 1.9 | 5.3 ± 2.0 | 6.3 ± 2.3 | |
Use of labor analgesia, n (%) | No use | 44 (9.1%) | 17 (9.4%) | 1 (6.7%) |
Nitrous oxide | 396 (82.3%) | 143 (79.4%) | 12 (80.0%) | |
Acupuncture | 155 (32.2%) | 62 (34.4%) | 6 (40.0%) | |
Epidural analgesia | 159 (33.1%) | 52 (28.9%) | 7 (46.7%) | |
Second line analgesia | 249 (51.8%) | 92 (51.1%) | 11 (73.3%) |