|Demographic and health characteristics for each sample|
|Sex (% male)||16.1||41.9||44.2||41.4|
|Mean age in years (SD)||77.2 (6.50)||74.5 (7.30)||74.4 (6.60)||73.0 (6.31)|
|Partner status (% partnered)||52.2||58.8||64.4||62.8|
|Educational level (%)|
|Grade 9 or lower||27.3||16.6||60.6||82.1|
|Smoking (% non-smoker)||95.0||90.2||83.0||84.8|
|Drinking Alcohol (% abstainer)||27.7||70.3||66.1||74.3|
|Medical conditions (%)|
|More than one||47.9||67.4||22.4||24.4|
|ADL Difficulty (% with no difficulty)||86.4||86.1||96.9||91.3|
|Mental Health Status (% poor)||12.4||14.9||13.3||23.1|
|Self-rated health (%)a|
|Mean self-rated health (SD)b||2.87 (0.94)||2.94 (1.09)||2.74 (1.04)||4.06 (1.11)|
a In the Japanese survey response options were totally healthy/relatively healthy/of average health/relatively not very healthy/not at all healthy.
b Low scores indicate good health; excellent = 1 to poor = 5.
Note: Percentages may not sum to 100 due to rounding. All characteristics are significantly different between countries, p < .001 determined by Chi squared or F-test.
French et al.
French et al. BMC Public Health 2012 12:649 doi:10.1186/1471-2458-12-649