From: Uterine fibroids and risk of preterm birth by clinical subtypes: a prospective cohort study
Outcome | Preterm | Unadjusted RR | 95% CI | Adjusted RRa | 95% CI | Adjusted RR, Secondaryb | 95% CI |
---|---|---|---|---|---|---|---|
All preterm births | 352 | 0.99 | 0.71–1.39 | 0.88 | 0.62–1.24 | 0.93 | 0.66–1.30 |
Spontaneous | 133 | 1.35 | 0.83–2.20 | 1.27 | 0.76–2.11 | 1.29 | 0.77–2.17 |
Preterm labor | 83 | 1.19 | 0.62–2.29 | 1.31 | 0.66–2.59 | 1.43 | 0.73–2.82 |
PPROM | 50 | 1.65 | 0.78–3.49 | 1.18 | 0.53–2.62 | 1.12 | 0.48–2.58 |
Medically indicated | 78 | 1.00 | 0.48–2.06 | 0.92 | 0.43–1.96 | 1.02 | 0.48–2.18 |