Paediatric and perinatal epidemiology · 2021
Racial inequity in preterm delivery among college-educated women: The role of racism.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Brase Piper, MacCallum-Bridges Colleen, Margerison Claire E
Аннотация
BACKGROUND: Non-Hispanic Black (NHB) women face a 50% increased risk of delivering preterm compared to non-Hispanic White (NHW) women in the United States. Sociodemographic and pregnancy risk factors do not fully explain this inequity. This inequity exists even among women with a college education, although recent empirical analysis on racial inequities in preterm delivery (PTD) among college-educated women is lacking. Furthermore, the contribution of preconception risk factors to the racial inequity in PTD has not been examined.
OBJECTIVES: To determine whether: (i) there is a NHB-NHW inequity in PTD among college-educated women; (ii) the prevalence of known, measured sociodemographic, pregnancy, and preconception PTD risk factors differs between NHB and NHW college-educated women; (iii) equalising the distribution of risk factors between college-educated NHB and NHW women reduces or eliminates the racial inequity in PTD.
METHODS: We analysed US natality data from 2015 to 2016 among women with a college degree or higher (n = 2 326 512). We calculated frequencies of sociodemographic, pregnancy, and preconception risk factors among all women and separately by race/ethnicity. We used modified Poisson regression models to estimate the association between race/ethnicity and PTD controlling for known, measured sociodemographic, pregnancy, and preconception factors.
RESULTS: The largest percentage point differences in risk factors between NHW and NHB women were observed for marital status, trimester of care initiation, body mass index, and birth interval. Among college-educated women, the unadjusted risk of PTD for NHB women was 1.77 (95% CI 1.74, 1.79) times the risk for NHW women. After controlling for sociodemographic, pregnancy, and preconception factors, this attenuated to RR 1.47 (95% CI 1.45, 1.49).
CONCLUSIONS: A racial inequity in PTD persists among college-educated women. Racism contributes to the NHB-NHW inequity in PTD, in part, through its influence on known sociodemographic, pregnancy, and preconception risk factors for PTD and, in part, through unmeasured pathways.
OBJECTIVES: To determine whether: (i) there is a NHB-NHW inequity in PTD among college-educated women; (ii) the prevalence of known, measured sociodemographic, pregnancy, and preconception PTD risk factors differs between NHB and NHW college-educated women; (iii) equalising the distribution of risk factors between college-educated NHB and NHW women reduces or eliminates the racial inequity in PTD.
METHODS: We analysed US natality data from 2015 to 2016 among women with a college degree or higher (n = 2 326 512). We calculated frequencies of sociodemographic, pregnancy, and preconception risk factors among all women and separately by race/ethnicity. We used modified Poisson regression models to estimate the association between race/ethnicity and PTD controlling for known, measured sociodemographic, pregnancy, and preconception factors.
RESULTS: The largest percentage point differences in risk factors between NHW and NHB women were observed for marital status, trimester of care initiation, body mass index, and birth interval. Among college-educated women, the unadjusted risk of PTD for NHB women was 1.77 (95% CI 1.74, 1.79) times the risk for NHW women. After controlling for sociodemographic, pregnancy, and preconception factors, this attenuated to RR 1.47 (95% CI 1.45, 1.49).
CONCLUSIONS: A racial inequity in PTD persists among college-educated women. Racism contributes to the NHB-NHW inequity in PTD, in part, through its influence on known sociodemographic, pregnancy, and preconception risk factors for PTD and, in part, through unmeasured pathways.