1) Percent distribution of live births in the 2 years preceding the survey by mother’s estimate of baby’s size at birth.
2) Percentage of live births in the 2 years preceding the survey with a reported birth weight by source.
3) Percentage of live births in the 2 years preceding the survey weighed at birth reported as less than 2.5 kg.
Coverage:
Population base: Live births to interviewed women (KR file)
Time period: 2 years preceding the survey
Numerators:
1) Number of live births in the 2 years preceding the survey distributed according to mother’s estimate of baby’s size at time of birth (very small, smaller than average, average or larger, don’t know/missing) (m80 in 1:2 & m18 = 5, 4, 1:3, 8 or 9)
2) Number of live births in the 2 years preceding the survey with a reported birth weight according to written record, mother’s recall, or either source (m80 in 1:2 & m19a = 1, 2 or in 1:2)
3) Number of live births in the 2 years preceding the survey who were weighed at birth and were reported as weighing less than 2.5 kg (m80 in 1:2 & m19a in 1:2 & m19 in 0:2499)
Denominators:
a) Number of live births in the last 2 years (m80 in 1:2)
b) Number of live births in the last 2 years (m80 in 1:2)
c) Number of live births in the last 2 years who were weighed at birth (m80 in 1:2 & m19a in 1:2)
Variables: KR file.
|
m80 |
Pregnancy outcome for this section |
|
m18 |
Size of child at birth |
|
m19 |
Birth weight in kilograms |
|
m91a |
Weight at birth/recall |
|
v005 |
Woman’s individual sample weight |
Numerator divided by the denominator, multiplied by 100.
Included in distributions of birth size but excluded from numerator of reported weight at birth, and numerator and denominator for birth weight less than 2.5 kg.
Percent distribution of birth size adds up to 100 percent.
Reporting of birth weight is based on either a written record or mother’s recall.
In DHS-V and DHS-VI a percent distribution of birth weight was provided for children weighed at birth. In earlier rounds the percent distribution also included the category “Not weighed” and was based on all births.
Through DHS-7, size at birth and birth weight data were reported for all live births in the 5 years preceding the survey. In DHS-8, data are collected for live births in the 3 years preceding the survey and tabulated for live births in the 2 years preceding the survey. In addition, in DHS-8, live births with a reported birth weight are presented according to written record, mother’s report, or either written record or mother’s report. If the percentage of births that have a reported birth weight is less than 90 percent, the percentage with a birth weight less than 2.5 kg is not calculated.
Care should be taken when comparing birth weight data with data reported in earlier DHS reports.
Blanc, A. K., and T. Wardlaw. 2005. “Monitoring low birth weight: an evaluation of international estimates and an updated estimation procedure.” Bulletin of the World Health Organization, 83, pp.178-185d. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2624216/
WHO. 2017. Global Nutrition Monitoring Framework: Operational Guidance for Tracking Progress in Meeting Targets for 2025. http://www.who.int/nutrition/publications/operational-guidance-GNMF-indicators/en/
DHS-8 Tabulation plan: Table 10.1
API Indicator IDs:
CH_SZWT_C_VSM, CH_SZWT_C_SML, CH_SZWT_C_AVG, CH_SZWT_C_DKM, CH_SZWT_C_REP, CH_SZWT_C_L25
GNMF Indicator 3: Prevalence of infants born <2,500g