Avoiding loss of native individuals in birth certificate data.
Avoiding loss of native individuals in birth certificate data.
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DOI:
10.1038/s41372-022-01469-4
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发表时间:
2023-03
影响因子:
2.9
通讯作者:
Montoya-Williams, Diana
中科院分区:
文献类型:
--
作者:
Holloway, Kayla;Radack, Joshua;Passarella, Molly;Ellison, Angela M.;Chaiyachati, Barbara H.;Burris, Heather H.;Montoya-Williams, Diana
American Indian or Alaskan Native (AIAN) families are disproportionately affected by preterm birth compared to non-Hispanic White families (11.6 vs. 9.1% in 2020)[1]. Persistent inequities across the lifespan result in shorter life expectancies among AIAN individuals than any other racial group in the United States [2]. One challenge to improving health and healthcare of AIAN families is the lack of representation in research [3]. This is partly due to the small proportion of AIAN individuals in the US population (constituting roughly two percent). While the gold standard in analyses of racial disparities in health is to use selfidentified race [4], advanced statistical models often cannot accommodate very small sample sizes [5]. As such, AIAN individuals often are absorbed into an “other” category when analyzing health outcomes, including preterm birth. Such aggregation can mask actionable disparities. On the Pennsylvania (PA) birth certificate, there are two ways in which parents can indicate their race and ethnicity. Parents can check boxes and they can use a “write-in” option. The aim of this study was to determine whether using write-in data could meaningfully increase the sample size of AIAN populations in perinatal research. We used PA birth certificate data from 2006 to 2014, restricted to singleton births linked to hospital discharge data, to determine how many additional births among AIAN we could capture with examination of each write-in response. We then examined how preterm birth rates and their 95% confidence intervals differed among AIAN people when restricting to individuals who checked the AIAN box or when expanding to include write-in responses. Finally, we performed a power calculation to demonstrate the importance of increasing sample sizes to study relatively rare events such as preterm birth. There were 1,089,429 births in the study period, 905 (0.08%) of which were among individuals who checked only the AIAN box. There were an additional 11 895 (1.1%) individuals who checked the AIAN box in addition to another box, who were classified as multiracial and not included in the analysis. Nearly half of these multiracial individuals (n= 5277) identified as Black in addition to AIAN. There were 222 individuals who checked the “other” box and wrote-in a response consistent with AIAN identities. The most common write-in responses in descending order were: Cherokee (n= 50), Taino (n= 23), Native American (n= 21), and Blackfoot (n= 8). All other written-in responses had a frequency of one. Including these responses increased the sample size to 1109 births among AIAN individuals–a 22.5% increase. The preterm birth rate among AIAN people without including write-in responses was 10.1%(95% CI: 8.1%, 12.0%). When write-in responses were included, the preterm birth rate was slightly higher with an expected narrowing of the confidence interval (10.8%, 95% CI: 9.0%, 12.7%). A power curve shows the improvement in power to detect relative changes in preterm birth rates with an alpha of 0.05 when the larger group is used (Fig. 1). Using this figure, one can see that if researchers were hoping to test, for instance, whether the preterm birth rate had increased by 20%, the larger group of 1109 births would have roughly 10% more power than the original group of 905 births to detect this increase. In conclusion, inclusion of write-in designations of AIAN populations in analyses of birth certificate data has substantial potential to increase representation and avoid loss of information. In addition, future inclusion of individuals who include AIAN among their identities may shed light on intersectional ways in which health is affected by structural …
影响因子:
12.7
作者:
Pacheco CM;Daley SM;Brown T;Filippi M;Greiner KA;Daley CM
通讯作者:
Daley CM
影响因子:
4.5
作者:
Moradi, Milad;Samwald, Matthias
通讯作者:
Samwald, Matthias