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Determining optimal gestational weight gain in a multiethnic A sian population
Author(s) -
Ee Tat Xin,
Allen John Carson,
Malhotra Rahul,
Koh Huishan,
Østbye Truls,
Tan Thiam Chye
Publication year - 2014
Publication title -
journal of obstetrics and gynaecology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 50
eISSN - 1447-0756
pISSN - 1341-8076
DOI - 10.1111/jog.12307
Subject(s) - medicine , underweight , overweight , weight gain , population , body mass index , obstetrics , pregnancy , logistic regression , gestational age , demography , body weight , environmental health , biology , genetics , sociology
Aim To define the optimal gestational weight gain ( GWG ) for the multiethnic S ingaporean population. Methods Data from 1529 live singleton deliveries was analyzed. A multinomial logistic regression analysis, with GWG as the predictor, was conducted to determine the lowest aggregated risk of a composite perinatal outcome, stratified by A sia‐specific body mass index ( BMI ) categories. The composite perinatal outcome, based on a combination of delivery type (cesarean section [ CS ], vaginal delivery [ VD ]) and size for gestational age (small [ SGA ], appropriate [ AGA ], large [ LGA ]), had six categories: (i) VD with LGA ; (ii) VD with SGA ; (iii) CS with AGA ; (iv) CS with SGA ; (v) CS with LGA ; (vi) and VD with AGA . The last was considered as the ‘normal’ reference category. In each BMI category, the GWG value corresponding to the lowest aggregated risk was defined as the optimal GWG , and the GWG values at which the aggregated risk did not exceed a 5% increase from the lowest aggregated risk were defined as the margins of the optimal GWG range. Results The optimal GWG by pre‐pregnancy BMI category, was 19.5 kg (range, 12.9 to 23.9) for underweight, 13.7 kg (7.7 to 18.8) for normal weight, 7.9 kg (2.6 to 14.0) for overweight and 1.8 kg (−5.0 to 7.0) for obese. Conclusion The results of this study, the first to determine optimal GWG in the multiethnic Singaporean population, concur with the Institute of Medicine ( IOM ) guidelines in that GWG among Asian women who are heavier prior to pregnancy, especially those who are obese, should be lower. However, the optimal GWG for underweight and obese women was outside the IOM recommended range.

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