Table 4 Summary of studies – provider characteristics
From: Adjunct clinical interventions that influence vaginal birth after cesarean rates: systematic review
Study; Design; Country, setting; Funding | Population; Study period | Intervention & comparator (no. of participants) | TOLAC ratea | VBAC ratea | VBAC/TOLAC ratea | |
|---|---|---|---|---|---|---|
Russillo (2008) Cross-sectional Canada, secondary care urban hospital Non-industry funded | Pregnant women with at least one previous CS, singleton delivery, birth weight at least 500 g January 1995–December 2003 | Grp 1: deliveries performed by obstetricians (n = 3493) | Grp 2: deliveries performed by family physicians (n = 201) | Grp 1: 1768 (50.6%) Grp 2: 163 (81.1%), p < 0.001 | Grp 1: 1136 (32.5%) Grp 2: 124 (61.7%) | Grp 1: 1136 (64.3%) Grp 2: 124 (76.1%), p = 0.002 |
White 2016 Non-concurrent cohort UK, tertiary teaching hospital Non-industry funded | Women with one previous CS who received antenatal and intrapartum care during study period 2008 & 2011 | Grp 1 (2008): obstetrician-led antenatal care (n = 209) | Grp 2 (≥2011): midwife-led antenatal care (n = 196) | Attempted VBAC: Grp 1: 143 (68.4%) Grp 2: 153 (78.1%) | Actual VBAC: Grp 1: 98 (46.9%) Grp 2: 120 (61.2%); aOR 1.79 (95% CI 1.17–2.75), p < 0.05 Spontaneous VBAC: Grp 1: 67 (32.1%) Grp 2: 85 (43.4%); OR 1.62 (95% CI 1.08–2.43) | Successful/attempted VBAC: Grp 1: 98 (68.5%) Grp 2: 120 (78.4%); OR 1.67 (95% CI 0.99–2.82), NS (p > 0.05) |
Yee 2017 Retrospective cohort US, large teaching hospital Funding NR | Women ≥18 years old with one prior low transverse CD, a term, cephalic singleton gestation, and no prior VD January 2008–June 2013 | Grp 1: night float schedule (n = 556) | Grp 2: traditional call schedule (n = 946) | Grp 1: 184 (33.1%) Grp 2: 156 (16.5%), p < 0.001 | Grp 1: 104 (18.7%) Grp 2: 88 (9.3%), p < 0.001 | Grp 1: 104 (56.5%) Grp 2: 88 (56.4%), p = 0.98 |
Zhang 2016 RCT China, hospital obstetric department No funding | Women with a history of previous CS in labor willing to undergo a VD May 2013–November 2014 | I: continuing midwifery care (n = 48) | C: standard maternity care (n = 48) | NR | I: 42 (87.5%) C: 32 (66.7%), p < 0.05 | NR |