Table 1 Distribution of risk factors for operated and non-operated patients

Age groups (years)

 65–69

4.9

4.0

 70–74

9.2

8.0

 75–79

16.9

15.5

 80–84

26.2

24.9

 85–89

26.4

26.9

 90–94

12.1

14.5

 95–100

4.3

6.2

Gender

 Male

21.8

30.2

 Female

78.2

69.8

Diabetes

5.9

9.3

Nutritional deficiencies

0.4

1.1

Obesity

0.3

0.4

Blood disorders

4.2

6.9

Dementias including Alzheimer’s disease

8.3

12.5

Parkinson’s disease

2.4

3.0

Hemiplegia and other paralytic syndromes

0.6

0.8

Hypertension

13.0

17.3

Other forms of chronic ischemic heart disease

7.9

13.5

Heart failure

4.9

9.0

Rheumatic heart disease

0.9

1.6

Cardiomyopathy

0.9

2.2

Other heart conditions

0.7

1.0

Cardiac arrhythmias

7.1

10.6

Cerebrovascular disease

10.0

15.7

Vascular disease

2.8

4.8

COPD

4.7

8.4

Chronic renal disease

4.8

9.1

Other chronic disease (liver, pancreas, intestine)

1.9

3.8

Rheumatoid arthritis and other inflammatory polyarthropathies

0.4

0.4