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Table 1 Proportion of area-level variance explained by the multilevel regression model for maternal and infant behavior indicators, 23 States, 2016–2018

From: US county-level estimation for maternal and infant health-related behavior indicators using pregnancy risk assessment monitoring system data, 2016–2018

Random effect

Null model a

Full model b

 

% area-level variance explained

Area-level variance

SE

Area-level variance

SE

Breastfeeding at 8 weeks

  State

0.188

0.050

0.099

0.020

47

  County

0.063

0.005

0.031

0.004

51

Infant non-supine sleeping position c

  State

0.046

0.008

0.016

0.003

65

  1. Abbreviation SE, standard error
  2. aModel with random effects only
  3. bModel with both random and fixed effects
  4. cModel only included state-level random effect
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Population Health Metrics

ISSN: 1478-7954