Table 2 : Distribution of HF patients according to the NYHA functional class.

NYHA functional class at presentation	Male	Female	Total (n=264)	P value (by chi-square test)
I	6 (5.6%)	6 (3.8%)	12 (4.5%)	--
II	16 (15%)	27 (17.2%)	43 (16.3%)	--
III	24 (22.4%)	35 (22.3%)	59 (22.3%)	0.886
IV	61 (57%)	89 (56.7%)	150 (56.8%)	--