(Abstracted from Lancet 2019;393:1527–1535)
Interpregnancy interval (IPI; the length of time between pregnancies) is a risk factor for adverse outcomes in infants and their mothers. The World Health Organization recommends women wait at least 2 years after a live birth and 6 months after miscarriage or abortion before conceiving again, but there is no recommendation for the best IPI after stillbirth.
School of Public Health, Midwifery and Paramedicine (A.K.R., E.M., G.P.) and School of Nursing, Midwifery and Paramedicine (S.B.), Curtin University, Perth, Western Australia, Australia; Information Services Department, National Institute for Health and Welfare, Helsinki, Finland (M.G.); Division of Family Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Stockholm, Sweden (M.G.); MRC Integrative Epidemiology Unit, University of Bristol (M.C.M.); and Department of Population Health Sciences, Bristol Medical School (M.C.M.), Bristol, United Kingdom; Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway (M.C.M., S.E.H.); and Menzies Centre for Health Policy, School of Public Health, University of Sydney, New South Wales (N.N.); and Telethon Kids Institute, University of Western Australia, Perth, Western Australia (H.L.), Australia