{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T22:05:08Z","timestamp":1793397908653,"version":"4.5.0"},"reference-count":119,"publisher":"American Medical Association (AMA)","issue":"19","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA"],"published-print":{"date-parts":[[2026,5,19]]},"abstract":"<jats:sec id=\"ab-jrv260006-1\">\n                    <jats:title>Importance<\/jats:title>\n                    <jats:p>Prepregnancy care and counseling optimize maternal health before conception to improve outcomes for mothers and infants. In the US, 66.4% of reproductive-aged women have at least 1 modifiable risk factor for adverse pregnancy outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-jrv260006-2\">\n                    <jats:title>Observations<\/jats:title>\n                    <jats:p>\n                      For all individuals desiring pregnancy, recommended interventions include folic acid supplementation; cessation of tobacco, alcohol, cannabis, and opioids; immunizations against hepatitis B virus, varicella, and rubella; and screening for syphilis and HIV. Folic acid use before pregnancy is associated with reduced fetal neural tube defects (relative risk [RR], 0.67; 95% CI, 0.52-0.87). Maternal tobacco smoking is associated with increased risks of stillbirth (summary RR [sRR], 1.46; 95% CI, 1.38-1.54), neonatal death (sRR, 1.22; 95% CI, 1.14-1.30), and perinatal death (sRR, 1.33; 95% CI, 1.25-1.41). Screening for and treatment of syphilis and HIV prior to and during pregnancy decrease rates of fetal and neonatal infection. Prepregnancy immunizations against hepatitis B virus, varicella, and rubella decrease neonatal infection and mortality. Individuals using tobacco, alcohol, cannabis, and opioids should receive counseling and treatment prior to pregnancy (eg, buprenorphine or methadone for opioid use disorder). For individuals with chronic disease, routine health examinations and contraceptive care in the year before conception can optimize pregnancy timing and are associated with decreased risk of severe maternal morbidity. Compared with planned pregnancies, unintended pregnancies are associated with increased risk of postpartum depression (15.7% vs 9.6%; adjusted odds ratio [aOR], 1.51; 95% CI, 1.40-1.70), preterm birth (9.4% vs 7.7%; aOR, 1.21; 95% CI, 1.12-1.31), and low infant birth weight (7.3% vs 5.2%; aOR, 1.09; 95% CI, 1.02-1.21). Weight loss prior to conception is recommended for individuals with a body mass index of 25 or greater because overweight and obesity are associated with increased risk of gestational diabetes, gestational hypertension, and cesarean delivery. Among patients with pregestational diabetes (type 1 or 2), hemoglobin A\n                      <jats:sub>1c<\/jats:sub>\n                      of less than 6.5% is associated with a decreased risk of fetal anomaly compared with hemoglobin A\n                      <jats:sub>1c<\/jats:sub>\n                      of 6.5% or greater. Cardiovascular complications such as hypertension and heart failure occur in 15% of pregnancies and are more common among those with preexisting cardiovascular disease. These patients should receive counseling on maternal and neonatal risk, monitoring, and medication management by specialists in cardiology and maternal fetal medicine.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-jrv260006-3\">\n                    <jats:title>Conclusions and Relevance<\/jats:title>\n                    <jats:p>Prepregnancy counseling and care reduce maternal morbidity and neonatal morbidity and mortality. Primary care\u2013based discussion of reproductive goals, immunizations, screening for infections and substance use, and risk-reducing interventions such as folate supplementation can optimize outcomes in individuals contemplating pregnancy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1001\/jama.2026.2888","type":"journal-article","created":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T15:30:22Z","timestamp":1776699022000},"page":"1706","source":"Crossref","is-referenced-by-count":12,"title":["Prepregnancy Care and Counseling"],"prefix":"10.1001","volume":"335","author":[{"given":"Kylie M.","family":"Cooper","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linda M.","family":"Szymanski","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, 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