期刊
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
卷 28, 期 3, 页码 320-323出版社
INFORMA HEALTHCARE
DOI: 10.3109/14767058.2014.916675
关键词
Perineal laceration; perineal length; race/ethnicity
资金
- Doris Duke Charitable Foundation
- Robert Wood Johnson Foundation
Objective: To examine the association between race/ethnicity, perineal length and the risk of perineal laceration. Methods: This is a prospective cohort study of a diverse group of women with singleton gestations in the third trimester of pregnancy. Perineal length was measured and mean values calculated for several racial/ethnic groups. Chi-squared analyses were used to examine rates of severe perineal laceration (third or fourth degree laceration) by race/ethnicity among women considered to have a short perineal length. Further, subgroup analyses were performed comparing nulliparas to multiparas. Results: Among 344 study participants, there was no statistically significant difference in mean perineal length by race/ethnicity (White 4.0 +/- 1.1 cm, African-American 3.7 +/- 1.0 cm, Latina 4.1 +/- 1.1 cm, Asian 3.8 +/- 1.0 cm, and other/unknown 4.0 +/- 0.9 cm). Considering parity, more multiparous Asian and African-American women had a short perineal length (20.7 and 23.5%, respectively, p = 0.05). Finally, the rate of severe perineal lacerations in our cohort was 2.6% overall, but was 8.2% among Asian women (p = 0.04). Conclusions: We did not find a relationship between short perineal length and risk of severe perineal laceration with vaginal delivery, or a difference in mean perineal length by maternal race/ethnicity. However, we did find that women of different racial/ethnic groups have varying rates of severe perineal laceration, with Asian women comprising the highest proportion.
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