Comparison 1. Disposable insert pads versus disposable menstrual pads.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Number of products scored as leaking: none versus a little or a lot	1		odds ratio (Fixed, 95% CI)	0.46 [0.33, 0.64]
2 Prevention of leakage: number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	0.27 [0.14, 0.52]
3 Comfort when dry: number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	0.56 [0.18, 1.71]
4 Comfort when wet: number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	0.40 [0.24, 0.68]
5 Discreetness (invisibility under clothes): number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	1.69 [1.01, 2.82]
6 Staying in place: number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	1.64 [0.52, 5.19]
7 Prevention of smell: number rating design good or okay versus poor	1		odds ratio (Fixed, 95% CI)	0.44 [0.24, 0.82]
8 Mean number of incontinence laundry items per 24 hours	1		mean (Fixed, 95% CI)	0.67 [0.50, 0.89]
9 Mean number of products used per 24 hours	1		mean (Fixed, 95% CI)	0.10 [‐0.03, 0.23]
10 Skin health problems: number recording none versus a little or a lot	1		odds ratio (Fixed, 95% CI)	0.70 [0.37, 1.33]
11 Effect on everyday activities: number rating design as good or no effect versus bad effec	1		odds ratio (Fixed, 95% CI)	0.29 [0.07, 1.11]
12 Overall acceptability: number rating design acceptable versus unacceptable	1		odds ratio (Fixed, 95% CI)	0.16 [0.03, 0.85]
13 Preference: number preferring design	1		odds ratio (Fixed, 95% CI)	0.18 [0.08, 0.41]