Prevalence and comorbidity of diabetes mellitus among non-institutionalized older adults in Germany - results of the national telephone health interview survey ‘German Health Update (GEDA)’ 2009

Table 1 12-month prevalence of known diabetes mellitus among German adults aged 50 years and older (N = 9133) by socio-demographic and behavioral characteristics

Characteristics	Prevalence % (95% CI)	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
Overall	13.6 (12.7-14.7)
Sex
Men	13.9 (12.5-15.5)	1.04 (0.88-1.24)	1.02 (0.83-1.25)
Women	13.4 (12.1-14.9)		1.00
Age groups ^* (yrs)**
50-54	6.5 (5.1-8.2)	1.00	1.00
55-59	9.5 (7.9-11.5)	1.51 (1.09-2.09)	1.48 (1.05-2.07)
60-64	11.8 (9.6-14.5)	1.93 (1.37-2.71)	1.96 (1.38-2.78)
65-69	14.2 (11.9-16.8)	2.37 (1.72-3.26)	2.20 (1.56-3.11)
70-74	20.1 (17.1-23.4)	3.60 (2.62-4.96)	3.59 (2.54-5.06)
75+	19.4 (16.5-22.6)	3.46 (2.52-4.75)	3.55 (2.49-5.05)
Region ^**
East	17.1 (15.0-19.6)	1.00	1.00
North	13.3 (10.9-16.1)	0.74 (0.56-0.98)	0.73 (0.54-0.98)
Central	13.0 (11.4-14.9)	0.72 (0.58-0.90)	0.71 (0.56-0.91)
South	11.9 (10.1-13.9)	0.65 (0.51-0.83)	0.60 (0.46-0.78)
BMI ^* (kg/m** ² )
< 25 (Normal)^#	5.9 (4.9-7.2)	1.00	1.00
≥ 25 (Overweight)	12.5 (11.1-14.2)	2.22 (1.73-2.85)	2.10 (1.63-2.71)
≥ 30 (Obese)	28.7 (25.9-31.8)	6.65 (5.17-8.55)	5.74 (4.42-7.46)
Smoking status ^***
Current smoker	9.5 (7.9-11.6)	1.00	1.00
Ex smoker	14.9 (13.2-16.7)	1.66 (1.28-2.14)	1.15 (0.87-1.52)
Non-smoker	14.5 (13.0-16.2)	1.61 (1.25-2.07)	1.01 (0.76-1.35)
Sports activity in the past 3 months ^***
No sports	18.4 (16.7-20.3)	2.44 (1.89-3.15)	1.70 (1.30-2.23)
<4 hours/week	10.6 (9.2-12.1)	1.28 (0.97-1.68)	1.14 (0.86-1.53)
over 4 hours/week	8.4 (6.9-10.4)	1.00	1.00
Educational attainment ^***
Primary	16.6 (15.0-18.4)	1.99 (1.63-2.43)	1.28 (1.02-1.60)
Middle	11.2 (9.9-12.8)	1.26 (1.02-1.57)	1.04 (0.82-1.32)
High	9.1 (7.9-10.5)	1.00	1.00

National Health Telephone Interview Survey “German Health Update (GEDA)” 2009).
Estimates of 12-month prevalence (%) and their 95% confidence intervals (95% CI) were weighted according to German population statistics (December 31, 2007).
^# including 101 (1%) under-weighted subjects whose body mass index (BMI) is less than 18.5 kg/m².
^* p < .05, ^** p < .01, ^*** p < .001, derived from Rao-Scott chi-square tests for the difference of prevalence estimates within specific group.
Adjusted and unadjusted odds ratio (OR) and 95% confidence intervals (95% CI) were derived from logistic regression models. Variables in the adjusted logistic regression model include all variables listed in Table 1.

ISSN: 1471-2458