Table 1

Characteristics of the first 17 population surveys for the World Mental Health (WMH) Survey Consortium

SiteNoAge rangeYear fieldedLevel of study participation (%)Sample composition
Americas
Colombia442618-65200388Household residents in all urban areas of the country (approx 73% of total national population)
Mexico578218-652001–277Household residents in all urban areas of the country (approx 73% of total national population)
USA9282≥182002–371Household residents, nationally representative
Asia and Pacific Region
Japan1663≥202002–356Household residents in four metropolitan areas:Fukiage, Kushikino, Nagasaki, Oyayama
People's Republic of China (PRC)5201≥182002–375Household residents in Beijing (2633) and Shanghai (2568) metropolitan areas
New Zealand12790≥18*2003–473Household residents, nationally representative
Europe
Belgium2419≥182001–251Households from national resident register, nationally representative
France2894≥182001–246Households with working and listed telephone numbers, nationally representative
Germany3555≥182002–358Individuals from community resident registries, nationally representative
Italy4712≥182001–271Individuals from municipality resident registries, nationally representative
Netherlands2372≥182001–256Household residents listed in municipal postal registries, nationally representative
Spain5473≥182001–279Household residents, nationally representative
Ukraine4725≥18200278Household residents speaking either Russian and Ukrainian, nationally representative
Middle East and Africa
Israel4859≥212002–473Individuals from national resident register, nationally representative
Lebanon2856≥182002–370Household residents, nationally representative
Nigeria6752≥182002–480Household residents in 21 of the country's 36 states (approx 57% of total national population)
South Africa4315≥18*2002–387Household residents, nationally representative

  • ↵* New Zealand and South Africa samples restricted to those ≥18 years for this report.