Table 1.

Demographic variables in the country-specific samples

	China	France	Germany	Poland	Russia	Spain	Sweden	U.K.	U.S.
Gender (female, %)	44.5	54.9	52.5	53.7	51.5	51.9	51.7	55.4	51.3
Age groups (%)
18 to 24 years	25.4	8.9	8.2	9.8	8.6	7.6	5.9	2.9	8.6
25 to 34 years	35.7	15.0	14.5	18.0	21.6	14.2	20.0	13.9	13.6
35 to 44 years	23.3	16.4	14.4	19.5	21.7	20.1	12.9	14.9	14.9
45 to 54 years	11.3	17.2	19.7	15.6	18.4	20.4	17.1	15.6	18.2
55 years and older	4.3	42.5	43.3	37.2	29.7	37.7	44.1	53.0	44.7
Marital Status (%)
Single	37.3	23.5	26.0	22.0	14.0	23.1	34.2	21.2	23.2
Romantic relationship, not married	10.8	22.9	15.0	16.8	13.6	20.0	21.2	15.0	7.9
Married	48.7	40.1	43.6	48.9	57.5	44.7	35.3	49.5	54.6
Widowed, divorced	3.2	13.4	15.4	12.3	14.9	12.2	9.2	14.4	14.3
Living Environment (%)
Large city	42.9	29.7	35.1	44.1	74.9	38.9	45.5	22.4	35.7
Small city	44.4	39.3	37.4	33.6	19.7	41.1	33.3	35.6	42.9
Rural community	12.7	30.9	27.5	22.3	5.4	20.0	21.2	42.0	21.4

China: N = 1030, France: N = 1012, Germany: N = 1175, Poland: N = 1012, Russia: N = 1020, Spain: N = 997, Sweden: N = 1022, U.K.: N = 1073, U.S.: N = 1077; due to rounding, the sum of the frequencies is not always 100%