Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
Systematic review	67 women Data from 1 RCT	All adverse effects with ibuprofen with paracetamol Absolute results not reported	OR 0.85 95% CI 0.31 to 2.34 P = 0.75		Not significant
Systematic review	117 women Data from 1 RCT	Gastrointestinal adverse effects with naproxen with paracetamol Absolute results not reported	OR 1.00 95% CI 0.06 to 16.62 P = 1.0		Not significant
Systematic review	117 women Data from 1 RCT	Neurological adverse effects with naproxen with paracetamol Absolute results not reported	OR 1.54 95% CI 0.24 to 9.83 P = 0.65		Not significant