Table 1.

Eligible interventions according to the requirements for MH.

Information and education	Interventions that provided education or access to information about the menstrual cycle, menstrual care or puberty were eligible. We considered interventions providing broader puberty or sexual and reproductive health education eligible if they reported including components related to the menstrual cycle and menstruation.
Materials, facilities, and services	Interventions designed to improve access to menstrual materials, either disposable or reusable, for example through free product provision were eligible. Interventions that improved water, sanitation, and hygiene (WASH) facilities or menstruation-friendly facilities such as through provision of water supply, soap, or private toilets. We considered interventions providing broader WASH interventions eligible if they reported objectives related to improving facilities for menstrual hygiene/self-care.
Care for discomforts and disorders	Eligible interventions were those designed to improve access to or availability of health care for menstruation. This included: efforts to train health care workers in menstrual topics or improve care quality, improve knowledge relevant to seeking treatment, or training to enable care for discomforts such as in medication selection or self-care strategies such as yoga, exercise, breathing or stretching techniques. Clinical trials comparing pharmaceutical or homeopathic remedies in their effectiveness at reducing menstrual pain were not eligible. Additionally, we excluded studies of acupuncture or health care provider-administered treatments focused on assessing only the effectiveness of pain reduction. Initial database searches identified studies that focused on pain relief that could be delivered at the community level such as stretching or yoga. These were categorised self-care interventions that equip the participant with the knowledge or practice to self-administer care for menstrual related discomfort or pain and were considered eligible.
Supportive social environment	We considered eligible interventions which aimed to improve social support or dismantle stigma or harmful norms surrounding menstruation. We anticipated such interventions would be informed by social and behavioural theories and include components beyond education alone. Interventions to improve social support could also include education delivered to support sources such as teachers or parents, rather than intended beneficiaries themselves.
Non-discrimination and participation	The regional review9 of MH included this requirement with attention to legal frameworks to dismantle discrimination or facilitate participation. Such frameworks are unlikely to be evaluated, and we hypothesised that improved participation may be facilitated by interventions addressing the above requirements. Evaluations of such policy interventions would be considered eligible, however preliminary searching identified no such evaluations. We did not include this requirement in results.