Reducing the risk of low or high birth weight for women with low or high body mass index under the care of high quality hospital by using instrumental variable

Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JHES-5-1_002

تاریخ نمایه سازی: 8 آذر 1402

Abstract:

Background and purpose: Women with low (high) pre-pregnancy body mass index (BMI) recently delivered infants with approximately normal or close to normal birth weights under the high quality of prenatal care. This study estimated the effect of pre-pregnancy BMI when concerns about the effects of different quality levels of prenatal care and the health status of mothers and their infants existed. Materials and Methods: The sample consisted of the female patients who referred to one of the two hospitals with different quality levels of prenatal care in a city of Iran. The logistic mixed effect model and Chi-square test did not show any significant effect of low (high) BMI on the risk of low (high) birth weight. Then, the two-stage residual inclusion instrumental variable (IV) method was used to estimate the effect of BMI in order to overcome the effects of the levels of quality care and the health status of the mothers and their infants. Results: Adjusted IV analysis revealed that women with a low BMI experienced an approximately ۱۸% (RR=۰.۸۲; ۹۵% CI (۰.۶۹, ۰.۹۷)) reduction in the risk of delivering a LBW infant and women with a high BMI experienced an approximately ۲۶% (RR=۰.۷۴; ۹۵% CI (۰.۵۷, ۰.۹۶)) reduction in the risk of delivering a HBW infant when they were under the care of a high quality hospital. Conclusion: This study revealed that the effect of BMI is confounded by the effects of quality of care and the health status of the mothers and their infants. Further, these results contributed to providing the conditions in improving the health status of mothers and their infants during pregnancy in local areas.

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Authors

Manoochehr Babanezhad

aDepartment of Statistics, Faculty of Sciences, Golestan University, Gorgan, Golestan, Iran, University of Waterloo, Waterloo, Ontario, Canada

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  • Frederick IO, Williams MA, Sales AE, Martin DP, et al. ...
  • Badshah S, Mason L, McKelvie K,Payne R, et al. Risk ...
  • Valero DBJ, Soriano T, Albaladejo R, Juarranz M, et al. ...
  • Veghari G, Kazemi S, Aslani H, Shomali L, Moradian H. ...
  • Chang MY, Kuo CH, Chiang K.F. The effects of pre-pregnancy ...
  • WHO expert consultation. Appropriate body-mass index for Asian populations and ...
  • Li N, Liu E, Guo J, Pan L, et al. ...
  • Lin H-C, Xirasagar S, Laditka JN. Patient perceptions of service ...
  • Zarei A, Arab M, FroushaniRA, Rashidian A, et al. Service ...
  • Greenland S. An introduction to instrumental variables for epidemiologists. Int. ...
  • Martens EP, Pestman WR, de Boer A, Belitser SV, et ...
  • Carroll RJ, Ruppert D, Crainiceanu CM,Tosteson TD, et al. Nonlinear ...
  • Brookhart MA, Rassen JA, Schneeweiss S. Instrumental variable methods in ...
  • Newhouse JP, McClellan M. Econometrics in outcomes research: The use ...
  • Beck CA, Penrod J, Gyorkos TW, Shapiro S, Pilote L. ...
  • Stukel TA, Fisher ES, Wennberg DE, Alter DA, el al. ...
  • Kahn JM, Ten Have TR, Iwashyna TJ. The relationship between ...
  • Wang NE, Saynina O, Vogle LD,Newgard CD, et al. The ...
  • Hadley J, Polsky D, Mandelblatt JS, Mitchell JM, et al. ...
  • Bound J, Jaeger DA, Baker R. Problems with instrumental variables ...
  • Crown HW, Henk JH, Vanness JD. Some cautions on the ...
  • Boef GCA, Dekkers MO, Vandenbroucke PJ, Cessie Le S. Sample ...
  • Burgess S, Thompson SG. Improving bias and coverage in instrumental ...
  • Staiger D, Stock JH. Instrumental variables regression with weak instruments. ...
  • Terza JV, Basu A, Rathouz PJ. Two-stage residual inclusion estimation: ...
  • Greene WH. Econometric analysis. New York: Macmillian;۲۰۰۰. ...
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