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Objective Measles immunity testing, unlike that for rubella, is not currently part of prenatal screening even though immunity to both is conferred by the measles–mumps–rubella (MMR) vaccine. Although endemic transmission of measles was declared eliminated in the United States in 2001, outbreaks have continued to occur. Given the risks associated with measles infection during pregnancy, we sought to identify risk factors for measles nonimmunity (MNI) in rubella-immune (RI) pregnant individuals. Methods We performed a retrospective observational cross-sectional study of patients receiving prenatal care and delivering at two university hospitals and a county hospital in Southern California from April 1, 2019 to February 1, 2021. Inclusion criteria were pregnant individuals ≥18 years old who had serological testing for rubella and measles during pregnancy. Demographic data were extracted from electronic medical records, including results of serological testing and chronic medical conditions. All subjects were rubella immune, and we compared measles-immune (MI) with MNI groups. Results In total, 1,813 RI individuals were identified, with 1,467 (81%) MI and 346 (19%) MNI individuals. Variables associated with an increased risk of MNI included having public health insurance (adjusted relative risk [aRR]: 1.56; 95% confidence interval [CI]: 1.24, 1.97) and Hispanic ethnicity (aRR: 1.37; 95% CI: 1.06, 1.78). Black race was associated with a decreased risk of MNI (aRR: 0.52; 95% CI: 0.29, 0.91). Birth year before 1989 demonstrated a trend toward increased risk of MNI, but this did not reach statistical significance (aRR 1.23; 95% CI: 1.00, 1.52). No differences were seen between the two groups for medical comorbidities. Conclusion Our study is the first to demonstrate risk factors for measles MNI in patients with documented rubella immunity. In the absence of universal measles serological screening recommendations, the risk factors identified could help guide clinicians in selective screening for those at risk of needing postpartum MMR vaccination. Key Points The rate of measles nonimmunity is higher than previously reported. Hispanic ethnicity and use of public insurance are risk factors for measles nonimmunity. The current recommendation for history-based screening for measles immunity is likely insufficient. [ABSTRACT FROM AUTHOR]

Introduction: In the United States, adverse birth outcomes are most prevalent among Black women and birthing people, who are known to experience increased mistreatment and disrespect in care. The purpose of this paper is to describe findings from a study that used two validated scales to examine factors associated with experiences of person‐centered care during pregnancy and birth among Black birthing people in California. Methods: We used data from 234 Black women and birthing people who were recruited between January and September 2020 as part of a validation study for the Person‐Centered Prenatal Care (PCPC) and the Person‐Centered Maternity Care (PCMC‐US) scales. Bivariate and multivariate analyses were conducted to examine the associations between PCPC and PCMC‐US scores and sociodemographic, health‐related, and care‐related factors. Results: The factors associated with lower PCPC scores were having foreign‐born parents, having public or no insurance, part‐time employment, unstable housing, late start of prenatal care (in the second or third trimester), poorer self‐rated health (less than very good), and lack of continuity of care with prenatal providers. Factors associated with lower PCMC‐US scores were having public insurance, late start of prenatal care, longer length of stay in facility following birth, poorer self‐rated health, lack of continuity of care between prenatal care and birth providers, and racial discordance with birth provider. Conclusions: Our analysis highlights the contributions of intersecting identities as well as health‐related and care‐related factors to Black birthing people's experiences of care in California. Continuity of care and provider racial concordance, in particular, were shown to improve pregnancy and birth experiences. [ABSTRACT FROM AUTHOR]

Objectives. We examined whether interpersonal processes of care (IPC) were associated with cesarean delivery. Methods. We performed a cross-sectional study of 1308 postpartum women at Kaiser Permanente Medical Center in Walnut Creek, CA (KP-WC), and San Francisco General Hospital (SFGH) from 2004 to 2006. Using interview and medical record data, logistic regression analyses estimated the odds of cesarean delivery as a function of IPC domains. Results. After adjustment for demographic and reproductive factors, women at KP-WC who reported higher scores for their provider's "elicitation of patient concerns and responsiveness" were less likely to have delivered by cesarean, whereas women who reported higher scores for "empowerment and self-care" were more likely. At KP-WC, women who reported low English proficiency were less likely to have delivered by cesarean than women who reported high proficiency. At SFGH, none of the IPC measures were significant; however, younger age was associated with a lower risk of cesarean delivery, whereas higher educational attainment was associated with an increased risk. Conclusions. To reduce record-high rates of cesarean delivery, more emphasis should be placed on addressing the nonmedical factors associated with operative delivery. [ABSTRACT FROM AUTHOR]