Table 1.

Characteristics of participants

	4–11 years		12–17 years		18–29 years		30–49 years		50–64 years		≥ 65 years
	N	% or mean (SD)	N	% or mean (SD)	N	% or mean (SD)	N	% or mean (SD)	N	% or mean (SD)	N	% or mean (SD)
Questionnaire	1895		1131		1938		4263		1802		1569
Online			336	29.7	1757	90.7	3515	82.5	1411	78.3	21	1.3
Telephone		100.0	795	70.3	181	9.3	748	17.5	391	21.7	1548	98.7
Gender (%)	1895		1131		1938		4263		1802		1569
Male	990	52.2	541	47.8	858	44.3	2348	55.1	1065	59.1	638	40.7
Female	905	47.8	590	52.2	1080	55.7	1915	44.9	737	40.9	931	59.3
Age (years)	1895	7.6 (2.3)	1131	14.2 (1.7)	1938	23.6 (3.5)	4263	39.5 (5.6)	1802	55.2 (3.8)	1569	72.6 (5.9)
Weight category (%)a	1579		1036		1885		4106		1766		1514
Underweight	362	22.9	121	11.7	349	18.5	215	5.2	45	2.5	57	3.8
Normal weight	957	60.6	815	78.7	1069	56.7	1736	42.3	624	35.3	610	40.3
Overweight	260	16.5	100	9.7	467	24.8	2155	52.5	1097	62.1	847	55.9
Urbanity (%) b	1802		1084		1922		4215		1775		1448
Non-urban	319	17.7	190	17.5	188	9.8	477	11.3	222	12.5	197	13.6
Slightly urban	471	26.1	262	24.2	353	18.4	856	20.3	364	20.5	331	22.9
Moderately urban	388	21.5	256	23.6	380	19.8	892	21.2	394	22.2	309	21.3
Highly urban	420	23.3	266	24.5	597	31.1	1281	30.4	505	28.5	387	26.7
Very highly urban	204	11.3	110	10.1	404	21.0	709	16.8	291	16.4	224	15.5
One or more chronic diseases (%)	1895	9.0	1131	12.2	1938	13.7	4263	20.8	1802	28.0	1569	34.0
Education level breadwinner (%)c	1858		834		1726		4093		1742		1526
Low	319	17.2	163	19.5	204	11.8	646	15.8	462	26.5	850	55.7
Middle	799	43.0	342	41.0	597	34.6	1752	42.8	652	37.4	385	25.2
High	740	39.8	329	39.4	925	53.6	1695	41.4	628	36.1	291	19.1
Sedentary work (%)	N/A	N/A	N/A	N/A	1606	47.3	4126	58.4	1731	54.8	N/A	N/A
Working hours/week	N/A	N/A	N/A	N/A	1638	30.1 (14.3)	4248	35.1 (11.9)	1801	33.5 (12.5)	N/A	N/A
Sedentary time school/workday (hours/day)	1886	6.3 (2.6)	1122	9.3 (3.3)	1881	9.7 (4.3)	4152	9.4 (4.7)	1700	9.4 (4.7)	N/A	N/A
Sedentary time non-school/non-work day (hours/day)	1756	3.8 (2.2)	1005	5.6 (3.4)	1804	5.8 (3.1)	3939	5.5 (3.2)	1658	5.8 (3.2)	1569	4.6 (2.9)
Meeting the MVPA guideline (%)d	1811	24.7	997	13.8	1938	44.1	4263	44.9	1802	48.7	1569	54.9
Meeting the VPA guideline (%)e	1777	33.0	1043	37.9	1816	25.1	4015	20.8	1711	19.2	1494	10.8
Sports participant (%)f	1895	68.2	1131	74.4	1938	61.0	4263	52.1	1802	52.8	1569	37.3

^a Age dependent cut off points for body mass index (BMI) were used in order to categorize children and adolescents into the weight categories: underweight, normal weight, and overweight. Body weight of adults and elderly was categorized into underweight (BMI < 20 kg/m²), normal weight (BMI 20–25 kg/m²) and overweight (BMI ≥ 25 kg/m²)

^b Based on postal codes

^c Lower education: no school graduation/lower general secondary education; Middle education: higher general secondary education/pre-university education/vocational school; High education: Bachelor or Master degree

^d Children (4–17 years) meet the moderate to vigorous intensity physical activity (MVPA) guideline if they engage in MVPA during at least 60 min a day at all days of the week, during summer- and wintertime. Adults and elderly meet the MVPA guideline if they engage in MVPA during at least 30 min a day at minimally five days a week, during summer- and wintertime

^e People of all age groups meet this guideline if they engage in vigorous intensity physical activity (VPA) during at least 20 min at least three times a week, during summer- and wintertime

^e Sports participant: Engaging in sports activities at least once a week or at least 40 times a year, regardless of the type of sport

N/A not applicable