[1] Univ West Indies, George Alleyne Chron Dis Res Ctr, Jemmotts Lane, Bridgetown BB11115, Barbados
[2] Radboud Univ Nijmegen, Nijmegen Sch Management, Heyendaalseweg 141, NL-6525 AJ Nijmegen, Netherlands
[3] McGill Univ, Dept Nat Resource Sci, Macdonald Steward Bldg,21111 Lakeshore Rd, Ste Anne De Bellevue, PQ H9X 3V9, Canada
[4] Univ West Indies, Inst Gender & Dev Studies, Mona Campus, Kingston 7, Jamaica
[5] Univ West Indies, Caribbean Inst Hlth Res, Mona Campus, Kingston 7, Jamaica
[6] Univ Cambridge, MRC Epidemiol Unit, Inst Metab Sci, Addenbrookes Treatment Ctr, Level 3, Cambridge CB2 0SL, England
[7] Univ Exeter, Sch Med, European Ctr Environm & Human Hlth, Knowledge Spa,Royal Cornwall Hosp, Truro TR1 3HD, Cornwall, England