Table 3. Risk of bias within individual RCTs.

Author	Gelisen et al.	INDEX trial	SWEPIS trial
Selection bias	Unclear	Low	Low
Performance bias	High*	Moderate*	High*
Detection bias	Unclear	Low	Low
Attrition bias	Low	Low	Low
Reporting bias	Unclear	Low	Low
Conflict of interest bias	Low	Low	Low

* The lack of blinding in all RCTs is due to the nature of intervention, i.e., it is not possible to blind the participants and staff.

INDEX, INDuction of labour at 41 weeks versus a policy of EXpectant management until 42 weeks; RCT, randomised controlled trial; SWEPIS, SWEdish Post-term Induction Study.