Associations of the Use of Prenatal Care with Low Birthweight in Asian Pacific Women in Hawaii.

PURPOSE. This study examines ethnic-specific differences in associations of inadequate use of prenatal care with poor birthweight outcomes to determine whether ethnic specific improvements in the use of prenatal care in a rural district could potentially reduce infant morbidity or mortality there. METHODS. Data from 1988 to 1990 birth certificates of the state of Hawaii were used to study Filipino, Hawaiian and Japanese births. Stratified multivariate logistic regression analyses of the association of inadequate use of prenatal care visits with low birthweight were performed for each group adjusting for potentially confounding sociodemographic risk characteristics. SUMMARY OF IMPORTANT FINDINGS. Results indicate that the adjusted odds of low birthweight for the Hawaiians in the rural district with inadequate amounts of prenatal care visits were higher than for those with adequate visits (OR 2.1; CI 1.4, 3.1) and those relative odds were higher than for Hawaiians in the rest of the state (OR 1.2; CI 1.1, 1.5). Births to Japanese women in the area had a similar pattern (OR 2.3, CI 0.97, 5.6; rest of state OR 1.2, CI 0.98, 1.5), but the ratios were not statistically significant. Births to Filipino women did not have the same pattern (OR 0.73, CI 0.34, 1.6; rest of state OR 1.4, CI 1.2, 1.6). MAJOR CONCLUSIONS. There is substantial heterogeneity in the associations of inadequate care use with poor birthweight outcomes in different groups of Asian Pacific women and in different locations in which they settle. RELEVANCE TO ASIAN AND PACIFIC ISLANDER AMERICAN POPULATIONS. Communities need to determine the associations of poor birth outcomes with poor prenatal care usage of Asian Pacific women to determine whether ethnic specific improvements in prenatal care could potentially improve such outcomes in their areas. KEY WORDS. pregnancy, health services research, outcome and process assessment (health care), regression analysis (logistic models), low birth weight, patient compliance.