Table 3 Baseline characteristics of participants stratified by age in the FORMEN baseline study, 2007-2008
| Â | All age groups | 65-69 years | 70-74 years | 75-79 years | 80 years and older | P value a |
|---|---|---|---|---|---|---|
Past history and present involvement of diseases (%) | ||||||
   Thyroid diseases | 1.4 | 1.3 | 1.3 | 0.7 | 3.9 | 0.0915 |
   Rheumatoid arthritis and connective tissue diseases | 1.0 | 1.0 | 0.9 | 0.7 | 2.2 | 0.3419 |
   Diabetes mellitus | 10.1 | 9.4 | 10.7 | 10.9 | 8.7 | 0.9221 |
   Asthma | 1.2 | 1.6 | 0.7 | 1.3 | 1.3 | 0.7719 |
   Hypertension | 33.3 | 30.2 | 35.0 | 35.6 | 31.7 | 0.2787 |
   Cerebrovascular diseases | 3.7 | 2.6 | 2.8 | 6.4 | 3.9 | 0.0137 |
   Coronary heart disease | 4.7 | 4.3 | 4.6 | 4.9 | 5.7 | 0.4090 |
   Malignant diseases | 8.2 | 6.2 | 0.4 | 9.1 | 11.3 | 0.0115 |
   Prostate cancer | 2.4 | 1.6 | 2.1 | 3.8 | 3.0 | 0.0391 |
   Steroid use | 0.9 | 1.1 | 0.6 | 1.1 | 1.3 | 0.7588 |
   Statin use | 4.9 | 4.8 | 5.4 | 3.1 | 7.0 | 0.8217 |
   Fragility fractures since age 50 | 4.4 | 1.2 | 4.4 | 4.9 | 4.4 | 0.7019 |
Lifestyle factors | Â | Â | Â | Â | Â | Â |
   Milk consumption (%) |  |  |  |  |  |  |
2 glasses/day or more | 8.1 | 6.2 | 8.4 | 9.1 | 10.0 | 0.0088 |
1 glass/day | 43.2 | 40.4 | 43.9 | 40.4 | 53.9 | Â |
Several glasses/week | 15.2 | 16.6 | 15.5 | 16.2 | 8.7 | Â |
1 glass/week or less | 33.5 | 36.7 | 32.3 | 34.2 | 27.4 | Â |
   Smoking status (%) |  |  |  |  |  |  |
Current smokers | 17.0 | 21.9 | 17.3 | 14.3 | 7.9 | <0.0001 |
Ex-smokers | 61.4 | 56.6 | 59.8 | 65.1 | 71.9 | Â |
Non-smokers | 21.7 | 21.5 | 23.0 | 20.8 | 20.2 | Â |
Number of pack-years in ever-smokers | 41.1 ± 28.3 | 40.8 ± 28.5 | 43.2 ± 27.8 | 39.2 ± 27.8 | 39.9 ± 29.5 | 0.3908 |
   Alcohol drinking habit (%) |  |  |  |  |  |  |
Less than once/week | 38.0 | 33.3 | 37.8 | 40.9 | 45.8 | 0.0218 |
1-2 times/week | 5.3 | 5.3 | 4.7 | 5.8 | 6.2 | Â |
3-5 times/week | 8.9 | 10.4 | 8.9 | 7.4 | 7.5 | Â |
6 times/week or more | 47.9 | 51.0 | 48.6 | 45.9 | 40.5 | Â |