Number of respondents | 4435 (56% females; 44% males), aged 18 and 94 years old, with a median age of 32 years (IQR 25–48). |
Method of survey | 98% in-person, 2% online. |
Number of respondents per country | mean = 211; mode = 200; median = 201; minimum of 66 in Hong Kong and maximum of 497 in Nigeria |
Countries in the different culture clusters in the IW cultural map | African-Islamic: Tunisia, Ghana, Nigeria, Turkey, Ethiopia, Lebanon |
Latin America: Malta, Brazil |
English Speaking: Great Britain, United States |
South Asia: India |
Orthodox: Serbia, Romania |
Catholic Europe: Portugal, France |
Protestant Europe: Netherlands |
Confucian: Japan, Hong Kong, South Korea, China |
Baltic: Estonia |
% of respondents who lived in the following culture clusters in the IW cultural map | Confucian: 15% |
Protestant Europe: 5% |
English Speaking: 9% |
Catholic Europe: 10% |
Orthodox: 9% |
Baltic: 5% |
South Asia: 5% |
Latin America: 10% |
African-Islamic: 33% |
% of respondents who lived in countries with the following income levels (as defined by the World Bank) | low income:4% |
lower middle: 29% |
upper middle: 28% |
high income: 39% |
% of respondents who lived in the following WHO Region | African: 20% |
Americas: 9% |
South East Asia: 5% |
European: 42% |
Eastern Mediterranean: 9% |
Western Pacific: 15% |
Respondents' residence | 16% in rural; 79% in urban areas |
Respondents' ethnicity | 40% European; 22% African; 13% Asian, 9% Arabian, 5% Chinese, 5% Korean, 5% Turkish, 2% Other, 0.7% Mixed, 0.1% Caribbean, 0.1% American. |
Respondents' religion | None (24%), Christians (48%), Muslim (17%), Hindu (4%), Buddhist (4%), Other (1%), Traditional African (0.7%), Sikh (0.1%), Jewish (0.1%), Agnostic (0.1%), Spiritual (0.1%), Jain (0.02%) |
Highest education level | 56% had university or technical college qualifications, 26% had completed high school, 3% middle school, 6% primary school and 4% had no formal schooling. |
Were respondents taking any medicine? | 54% no; 45% yes |
Participants' health | mean = 7.3 (with 10 being highest possible score) |
Participants' religiosity | mean = 5.3 (with 10 being highest possible score) |
Participants' wealth | 1% very poor; 12% poor; 71% average; 13% rich; 2% very rich |
Participants' occupation | Participants had a very large diversity of occupations, and although this was asked for, this item was excluded from data analysis due to the large diversity. |
Missing data | 3% for participants' responses about the routes of drug administration and 3% for covariates (participants' year of birth, gender, rural or urban residence, ethnicity, religion and how religious they were, highest education level, wealth, health and if they were taking any medicine. |