id,name,unit,description,createdAt,updatedAt,code,coverage,timespan,datasetId,sourceId,shortUnit,display,columnOrder,originalMetadata,grapherConfigAdmin,shortName,catalogPath,dimensions,schemaVersion,processingLevel,processingLog,titlePublic,titleVariant,attributionShort,attribution,descriptionShort,descriptionFromProducer,descriptionKey,descriptionProcessing,licenses,license,grapherConfigETL,type,sort,dataChecksum,metadataChecksum
157998,Low-birthweight babies (% of births),,"Low-birthweight babies are newborns weighing less than 2,500 grams, with the measurement taken within the first hour of life, before significant postnatal weight loss has occurred.

Statistical concept and methodology: Model methods are used based on availability of country input data. Country input data included: (i) estimates from administrative sources representing =90 per cent of live births labelled as high coverage; (ii) estimates from administrative sources representing 80 to <90 per cent of live births labelled as medium coverage; and (iii) estimates from household surveys adjusted for missing birthweights and heaping. The model methods applied were: b-spline: data for countries with =8 data points from high coverage administrative sources with =1 prior to 2005 and =1 more recent than 2010, were smoothed with b-spline regression to generate annual LBW prevalence estimates that followed country-reported estimates very closely. Hierarchical regression: data for countries not meeting requirements for b-spline but with =1 LBW country input data point were fitted into a model using a set of covariates to generate annual LBW prevalence estimates. The covariates included the natural log of neonatal mortality rate; the proportion of children underweight (weight for-age z score below minus two standard deviations from median weight for age of reference population); data type (high coverage administrative, low coverage administrative, household survey); UN region (e.g., Southern Asia, Caribbean); and a country-specific random effect.). These estimates may vary substantially from those reported by countries. Partial data: the estimate is based on only partial data for the most recent survey, therefore modelled estimates not shown for the individual country.

Notes from original source: For further details on methods, please refer to the following: Blencowe H, Krasevec J, de Onis M, Black R E, An X, Stevens G A, Borghi E, Hayashi C, Estevez D, Cegolon L, Shiekh S, Hardy V P, Lawn J E, Cousens S. National, regional, and worldwide estimates of low birthweight in 2015, with trends from 2000: a systematic analysis.",2021-08-10 01:59:08,2023-06-15 05:05:42,SH.STA.BRTW.ZS,,2000-2015,5357,18827,,{},0,{},,,,,1,,,,,,,,,,,,,,,,,