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A Study of Perinatal Outcomes of Hispanic Migrant Farmworkers Using the Optimality Index-US

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The Optimality Index-US (OI-US), an innovative instrument designed to evaluate perinatal care outcomes in the United States, has yet to be tested among migrant Hispanic farmworkers. This study pilots the instrument in a rural community with a large Hispanic migrant farmworker population and finds statistically significant differences in Perinatal Background Index (PBI) scores between Hispanic (n = 122) and non-Hispanic (n = 147) nulliparous women. Differences in total optimality scores (OI-US) are not significant between these two groups. An analysis of seven aspects with anticipated differences between nulliparas and multiparas reveals only two differences in the expected direction (perineal lacerations requiring repair [p = 0.081]; episiotomy [p = .008]). This study replicates aspects of the original 2001 findings and demonstrates the instrument's usefulness among an ethnic minority. It also adds to the evidence of the epidemiological paradox observed in other Hispanic subgroups.

Spanish
El Optimality Index-US (OI-US), un instrumento innovador diseñado para evaluar los resultados de atención perinatal en los estados unidos, no ha sido probado todavia entre trabajadoras migratorias hispanas de la granja. Este estudio piloto introduce el instrumento en una comunidad rural con una poblacion grande de trabajadoras migratorias hispanas de la granja y descubre diferencias estadísticamente significativas en resultados del Perinatal Background Index (PBI) entre mujeres nulíparas hispanas y no hispanas. Las diferencias en los resultados totales de optimalidad (OI-US) no son significativas entre estos dos grupos. Un análisis de siete aspectos con diferencias previstas entre las nulíparas y las multíparas pone de manifiesto solamente dos diferencias en la dirección esperada (laceraciones perineales que necesitan reparación [p = 0.081]; episiotomía [p = .008]). Este estudio reproduce los aspectos de los resultados originales del 2001 y demuestra la utilidad del instrumento entre una minoría étnica. También se añade a la evidencia la paradoja epidemiológica la cual se observa en otros subgrupos hispanos.
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Keywords: EPIDEMIOLOGIC PARADOX; HISPANIC MIGRANT FARMWORKERS; OPTIMALITY INDEX-US (OI-US); PERINATAL CARE OUTCOMES

Document Type: Research Article

Publication date: March 1, 2011

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