Table 1.
Model Descriptions
| Model | Model Type | Random Effects | Variables Included/Excluded | Sample Restrictions |
|---|---|---|---|---|
| Model I | Mixed Model | Enumeration district | Full model | Full sample |
| Model II | Mixed Model | Family | Full model | Full sample |
| Model III | Cross-classified Model | Enumeration district, Family | Full model | Full sample |
| Model IIIa | Cross-classified Model | Enumeration district, Family | Excluding family-level SES measures | Full sample |
| Model IIIb | Cross-classified Model | Enumeration district, Family | Excluding community-level SES measures | Full sample |
| Model IV | Mixed Model | Enumeration district | Full model | Restricted to eldest child in family |
| Model V | Hierarchical Model | Enumeration district, Family | Full model | Restricted to later-born children born in same enumeration district as eldest child in family (nested data hierarchy) |
| Model VI | Cross-classified Model | Enumeration district, Family | Including covariates available on birth certificate only | Full sample |
| Model VIa | Cross-classified Model | Enumeration district, Family | Including covariates available on birth certificate and gestational duration | Full sample |
| Model VIb | Cross-classified Model | Enumeration district, Family | Including covariates available on birth certificate and maternal smoking status during pregnancy | Full sample |