PROTOCOL: Involving men and boys in family planning: A systematic review of the effective components and characteristics of complex interventions in low- and middle-income countries.

Family planning (FP) helps people avoid unintended pregnancy, attain their desired number of children and/or determine the spacing of pregnancies. Effective FP is achieved through the use of contraceptive methods, provision of safe abortion, and prevention and treatment of infertility. FP also contributes to reduced maternal, neonatal and child morbidity and mortality, as well as the negative economic and psychosocial implications that unintended pregnancy, pregnancy complications and infertility can have.