Physical activity patterns and socioeconomic position: the German National Health Interview and Examination Survey 1998 (GNHIES98)

Table 2 Crude odds ratios (OR) of physical-activity indicators according to selected key variables, adults aged 18-79

	No. in sample^a	Vigorous work activity	No. in sample^b	Sports ≥ 2 hours/week	Sitting time ≥ 8 hours/weekday	High energy expenditure^c
	No. in sample^a	OR 95% CI	No. in sample^b	OR 95% CI	OR 95% CI	OR 95% CI
Total	3809		6800
Education
primary	1291	8.6 (6.6-11.2)	2929	1.0	1.0	1.9 (1.6-2.3)
secondary	1851	4.8 (3.7- 6.3)	2921	1.6 (1.4-1.8)	1.3 (1.2-1.5)	2.0 (1.7-2.4)
tertiary	667	1.0	950	2.0 (1.6-2.4)	2.8 (2.3-3.3)	1.0
*Covariates*
Occupation
low	1362	5.0 (4.1-6.1)	2675	1.0	1.0	1.7 (1.4-1.9)
middle	1387	1.3 (1.1-1.6)	2225	1.5 (1.3-1.7)	2.0 (1.8-2.4)	1.0 (0.9-2.0)
high	875	1.0	1260	2.0 (1.7-2.3)	2.6 (2.2-3.1)	1.0
Income
low	864	3.1 (2.5-3.7)	1819	1.0	1.0	1.7 (1.4-1.9)
middle	1060	1.8 (1.5-2.2)	1856	1.3 (1.1-1.6)	1.3 (1.1-1.5)	1.5 (1.3-1.7)
high	1296	1.0	1796	1.8 (1.6-2.1)	2.1 (1.8-2.5)	1.0
Vigorous work activity
yes	1522	-	1557	1.0	1.0	6.5 (5.6-7.4)
no	2287	-	2319	1.6 (1.3-1.8)	4.5 (3.8-5.4)	1.0
Sports activity ≥ 2 hours/week
yes	778	1.0	1258	-	1.1 (0.9-1.3)	1.5 (1.3-1.7)
no	3031	1.6 (1.3-1.8)	5542	-	1.0	1.0
Sitting time weekdays
≥ 8 hours	1564	1.0	1735	1.0 (0.9-1.2)	-	1.0
5 - < 8 hours	911	2.2 (1.8-2.7)	1929	1.0 (0.9-1.2)	-	6.4 (5.3-7.8)
< 5 hours	1334	6.8 (5.7-8.2)	2136	1.0	-	37 (31–46)
Body mass index
<25	1646	1.0	2705	3.2 (2.6-3.9)	1.1 (1.0-1.3)	1.0
25 - <30	1497	1.1 (1.0-1.3)	2648	2.6 (1.8-2.8)	1.1 (0.9-1.2)	1.1 (1.0-1.3)
≥30	654	1.4 (1.2-1.7)	1403	1.0	1.0	1.0 (0.8-1.1)
Self-perceived health
excell./very good	936	1.0	1347	4.0 (3.2-5.0)	1.1 (0.9-1.3)	1.6 (1.3-1.9)
good	2440	1.4 (1.2-1.7)	4258	1.6 (1.3-2.0)	0.9 (0.8-1.1)	1.5 (1.3-1.7)
fair/poor	431	2.3 (1.8-2.9)	1192	1.0	1.0	1.0

^a Number of observations in the workforce study sample (respondents indicating that they are ‘currently working’). ^b Number of observations in the total study sample. ^c Energy expenditure assessed on the basis of self-reported activities within 24h, expressed in metabolic equivalents (MET) , high energy expenditure = 4^th + 5^th quintiles of MET index.

ISSN: 1471-2458