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Maternal body mass index and gestational weight gain and their association with perinatal outcomes in Viet Nam

OBJECTIVE: To examine the association between gestational weight gain and maternal body mass index (BMI) among Vietnamese women and the risk of delivering an infant too small or too large for gestational age. METHODS: A prospective health-facility-based study of 2989 pregnant Vietnamese women was co...

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Published in:Bulletin of the World Health Organization 2011-02, Vol.89 (2), p.127-136
Main Authors: Ota, Erika, Haruna, Megumi, Suzuki, Motoi, Anh, Dang Duc, Tho, Le Huu, Tam, Nguyen Thi Thanh, Thiem, Vu Dinh, Anh, Nguyen Thi Hien, Isozaki, Mitsuhiro, Shibuya, Kenji, Ariyoshi, Koya, Murashima, Sachiyo, Moriuchi, Hiroyuki, Yanai, Hideki
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container_issue 2
container_start_page 127
container_title Bulletin of the World Health Organization
container_volume 89
creator Ota, Erika
Haruna, Megumi
Suzuki, Motoi
Anh, Dang Duc
Tho, Le Huu
Tam, Nguyen Thi Thanh
Thiem, Vu Dinh
Anh, Nguyen Thi Hien
Isozaki, Mitsuhiro
Shibuya, Kenji
Ariyoshi, Koya
Murashima, Sachiyo
Moriuchi, Hiroyuki
Yanai, Hideki
description OBJECTIVE: To examine the association between gestational weight gain and maternal body mass index (BMI) among Vietnamese women and the risk of delivering an infant too small or too large for gestational age. METHODS: A prospective health-facility-based study of 2989 pregnant Vietnamese women was conducted in the city of Nha Trang in 2007-2008. Cubic logistic regression was used to investigate the association of interest. Infants were classified into weight-for-gestational-age categories according to weight centiles for the Asian population. Gestational age was based on the date of last menstrual period and adjusted by the results of first-trimester ultrasound. FINDINGS: BMI was low (< 18.5), normal (18.5-22.9) and high (> 23.0) in 26.1%, 65.4% and 8.5% of the women, respectively. In each of these BMI categories, the percentage of women who delivered infants too small for gestational age was 18.1, 10.0 and 9.4, respectively, and the mean gestational weight gain was 12.5 kg (standard deviation, SD: ± 3.6), 12.2 kg (SD: ± 3.8) and 11.5 kg (SD: ± 4.7), respectively. Among women with low BMI, the risk of delivering an infant too small for gestational age ranged from approximately 40% if the gestational weight gain was < 5 kg to 20% if it was 5-10 kg. CONCLUSION: Having a low BMI, commonly found in Viet Nam, puts women at risk of delivering an infant too small for gestational age, especially when total maternal gestational weight gain is < 10 kg.
doi_str_mv 10.1590/S0042-96862011000200012
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METHODS: A prospective health-facility-based study of 2989 pregnant Vietnamese women was conducted in the city of Nha Trang in 2007-2008. Cubic logistic regression was used to investigate the association of interest. Infants were classified into weight-for-gestational-age categories according to weight centiles for the Asian population. Gestational age was based on the date of last menstrual period and adjusted by the results of first-trimester ultrasound. FINDINGS: BMI was low (&lt; 18.5), normal (18.5-22.9) and high (&gt; 23.0) in 26.1%, 65.4% and 8.5% of the women, respectively. In each of these BMI categories, the percentage of women who delivered infants too small for gestational age was 18.1, 10.0 and 9.4, respectively, and the mean gestational weight gain was 12.5 kg (standard deviation, SD: ± 3.6), 12.2 kg (SD: ± 3.8) and 11.5 kg (SD: ± 4.7), respectively. 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title Maternal body mass index and gestational weight gain and their association with perinatal outcomes in Viet Nam
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