Table 1.

Multilevel models with different model specifications

Main association
Model 1	F=f(Mutuelles, year, poverty, child age, child gender, mother's education, mother's age, geographic difficulty, PSU-Mutuelles)
Association by year and Mutuelles
Model 2	F=f(Mutuelles, year, Mutuelles X year, child age, child gender, mother's education, mother's age, geographic difficulty, PSU-Mutuelles)
Association by year and poverty status
Model 3	F=f(Mutuelles, year, Mutuelles X year, poverty, Mutuelles X poverty, child age, child gender, mother's education, mother's age, geographic difficulty, PSU-Mutuelles)

PSU, primary sampling unit.