Acknowledgments
We wish to express our gratitude to the data collection team:
Eva Maria Lima de Matos, Martine Sirois, Elismar de Jesus Pereira,
and Priscila Brito Novaes da Silva.
Appendix A. Supplementary data
Supplementary data related to this article can be found at http://
dx.doi.org/10.1016/j.socscimed.2013.12.025.