Educational interventions most often targeted school-age children and adolescent girls, and there were few examples of programs targeting women of reproductive age (174). The majority of education interventions were delivered in formal school-based settings (174). However, this is a “selective” delivery platform given that not all adolescents attend schools (193). School fees and distance to school are major barriers to school enrollment (174, 194). Educational interventions need to be sensitive to the reasons why girls are not in school, e.g., work, and to the hours and locations that might make education interventions more accessible (193). Nonformal education, alternative education, mobile schools, and literacy programs can target women and girls not in school, although these approaches were less common and not as well evaluated (174). Interventions that target girls who are no longer in school provide valuable examples about how such interventions could be delivered to hard-to-reach groups (182).

A related issue is the inclusion of pregnant women in clinical studies. Since other illnesses can exist concurrently with pregnancy, information is needed on the response to and efficacy of interventions during pregnancy, but ethical issues relative to the fetus, make this more complex. This gender bias is partly offset by the iniation of large scale epidemiology studies of women, such as the Nurses' Health Study (1976),[162] Women's Health Initiative[163] and Black Women's Health Study.[164][6]
The World Health Organization (WHO) estimates that 35% of women in the world have experienced physical or sexual violence over their lifetime and that the commonest situation is intimate partner violence. 30% of women in relationships report such experience, and 38% of murders of women are due to intimate partners. These figures may be as high as 70% in some regions.[138] Risk factors include low educational achievement, a parental experience of violence, childhood abuse, gender inequality and cultural attitudes that allow violence to be considered more acceptable.[139]
It has not been scientifically established that large amounts of vitamins and minerals or dietary supplements help prevent or treat health problems or slow the aging process. Daily multivitamin tablets can be beneficial to some people who do not consume a balanced diet or a variety of foods. Generally, eating a well-balanced diet with a variety of foods provides the necessary nutrients your body needs. Eating whole foods is preferable to supplements because foods provide dietary fiber and other nutritional benefits that supplements do not. If you choose to take vitamin and mineral supplements, it is recommended to choose a multi-vitamin that does not exceed 100 percent of the Recommended Dietary Intake (RDI).
^ Jump up to: a b c Aldridge, Robert W.; Story, Alistair; Hwang, Stephen W.; Nordentoft, Merete; Luchenski, Serena A.; Hartwell, Greg; Tweed, Emily J.; Lewer, Dan; Vittal Katikireddi, Srinivasa (2017-11-10). "Morbidity and mortality in homeless individuals, prisoners, sex workers, and individuals with substance use disorders in high-income countries: a systematic review and meta-analysis". Lancet. 391 (10117): 241–250. doi:10.1016/S0140-6736(17)31869-X. ISSN 1474-547X. PMC 5803132. PMID 29137869. All-cause standardised mortality ratios were significantly increased in 91 (99%) of 92 extracted datapoints and were 11·86 (95% CI 10·42–13·30; I2=94·1%) in female individuals