Altman 2007.

Methods	Cohort, prospective data collection at first pregnancy with 10 year follow‐up. The only true prospective cohort study in this review.
Participants	200 women having only delivered vaginally and 195 women only delivered by CD
Interventions	CD or un‐instrumented VD
Outcomes	urinary or anal incontinence ‐ including gas and faeces, assessed 10 years after first delivery
Notes	Regression model adjusted for age a first delivery, parity, mode of delivery, sphincter injury and interaction term between urine and anal. Prepartum incontinence excluded.