Effect of a text intervention during pregnancy on birth weight in participants of the WIC program in Hawaii.
Date
2020
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4(Suppl 2)
; 4(Suppl 2):1009.
Number/Issue
6
Starting Page
1009
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Abstract
ObjectivesThere
are limited studies testing the effect of a pregnancy educational
intervention on infants’ birth weight. This study investigated the
effect of a short message service (SMS), or text message, intervention
for promoting adequate gestational weight gain on infants’ birth weight
in a sample of pregnant women in Hawai‘i.MethodsA
randomized clinical trial was conducted among women participating in
the Special Supplemental Nutrition Program for Women, Infant, and
Children (WIC) program in Hawai‘i (n = 83). The intervention group (n = 42) received weekly SMS about appropriate energy intake and physical activity and the control group (n = 41)
received weekly SMS about general health issues for 4 months during
pregnancy. Weight and length at birth were obtained from the
participant's chart in WIC and compared between groups. Birthweight was
categorized as small (SGA), appropriate (AGA) or large (LGA) for
gestational age.ResultsWomen
were age 27.7 ± 5.3y on average, 65.5% were Native Hawaiian, Pacific
Islander or American Indian, 54.8% had some college or more and 37.8%
were employed. Infant birth weight was similar in the intervention
(3431 ± 682 g) and control groups (3232 ± 599 g; P > 0.05).
Mothers in the control group had higher odds of having a SGA baby (OR:
2.21; 95% CI 0.40, 12.2) but similar risk of having a LGA baby (0.27;
95% CI 0.07, 1.05) compared to the intervention group. After adjusting
for mothers’ age, education level and employment status, results were
similar for SGA (OR: 2.34; 95% CI 0.43, 14.7) and LGA (OR: 0.35; 95% CI
0.08, 1.49).ConclusionsThere
was no significant difference in birth weight between groups in mothers
from the WIC program in Hawai‘i. More intensive educational
interventions may be needed to observe an impact on birth weight.
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