Table 1.

Sample description in terms of age, sex and categories of the New York Heart Association functional classification

Age m (sd)	71.7 (11.8)
Sex n (%)
Male	585 (59.3%)
NYHA n(%)
1 - No limitations due to dyspnoea or fatigue	224 (23.3%)
2 - Dyspnoea or fatigue with normal physical activity	299 (31.2%)
3 - Dyspnoea or fatigue with slight physical activity	357 (37.2%)
4 - Dyspnoea or fatigue with every physical activity and in rest	80 (8.3%)