[1] Univ KwaZulu Natal, Sch Nursing & Publ Hlth, Dept Publ Hlth Med, ZA-4091 Durban, South Africa
[2] Univ Cape Coast, Dept Populat Hlth, Cape Coast, Pmb, Ghana
[3] Univ Technol Sydney, Sch Publ Hlth, Sydney, NSW 2007, Australia
[4] Texas A&M Univ, Dept Hlth & Kinesiol, College Stn, TX 77843 USA
[5] James Cook Univ, Coll Publ Hlth Med & Vet Sci, Townsville, Qld 4811, Australia
[6] Univ Cape Coast, Dept Hlth Phys Educ & Recreat, Cape Coast, Pmb, Ghana
[7] Bielefeld Univ, Fac Psychol & Sport, Sci, Neurocognit & Act Biomech Res Grp, Postfach 10 01 31, D-33501 Bielefeld, Germany
[8] Univ Gondar, Coll Med & Hlth Sci, Inst Publ Hlth, Dept Epidemiol & Biostat, POB 196, Gondar, Ethiopia