Table 2.

Distribution of socio-demographic and clinical characteristics—Germany 1 and Germany 2

Variable	Category	German census dataa	Sample Germany 1 (N = 1002)			Sample Germany 2 (N = 1016)
		%	n	%	Statistics	n	%	Statistics
Age	18–30	17.7	184	18.4	χ2 = 106.7, p < 0.001	175	17.2	χ2 = 1.10, p = 0.954
	31–40	15.3	168	16.8		165	16.2
	41–50	18.6	220	22.0		182	17.9
	51–60	19.8	244	24.4		206	20.3
	61–70	14.3	155	15.5		144	14.2
	71– 80	14.3	31	3.1d		144	14.2
Gender	Male	49.5	610	60.9c	χ2 = 51.4, p < 0.001	498	49.0	χ2 = 0.09, p = 0.759
	Female	50.5	392	39.1d		518	51.0
Education	Compulsory	37.4	251	25.0d	χ2 = 179.4, p < 0.001	295	29.0d	χ2 = 140.0, p < 0.001
	Lower secondary	31.4	246	24.6d		231	22.7d
	Higher secondary	15.1	220	22.0c		219	21.6c
	Tertiary (university, polytechnic)	16.1	285	28.4c		271	26.7c
Marital status	Single	25.1	238	23.8	χ2 = 3.86, p = 0.277	266	26.2	χ2 = 7.38, p = 0.061.
	Married/partnership	61.1	613	61.1		584	57.5
	Divorced/separated	10.5	122	12.2		125	12.3
	Widowed	3.3	29	2.9		41	4.0
Chronic diseases	Yes	36.7b	375	37.4	χ2 = 0.23 p = 0.634	402	39.6	χ2 = 3.59, p = 0.058
	No	63.3	627	62.6		614	60.4

^aDistribution of socio-demographic and clinical characteristics, restricted to an age range of 18–80

^bAssuming a prevalence of 80% for chronic diseases in persons aged over 80 [based on prevalences given by Fuchs et al. [23] and Marengoni et al. [24]

^cMore than 5% points higher than in the German general population

^dMore than 5% points lower than in the German general population