Table 3.

Pulmonary arterial systolic pressure (PASP) in relation to gender, treatment with hydroxyurea, and smoking among the participants.

-		Pulmonary Arterial Systolic Pressure (PASP)		-	-
Parameter		Normal	Pulmonary Hypertension	Total	P-value
Gender	Female	11 (73.3%)	4 (26.7%)	15 (100%)	0.779
	Male	11 (68.8%)	5 (31.2%)	16 (100%)
	Total	22 (71.0%)	9 (29.0%)	31 (100%)
Use of hydroxyurea	Not used	12 (63.2%)	7 (36.8%)	19 (100%)	0.628
	≤ 6 months	3 (75.0%)	1 (25.0%)	4 (100%)
	≥ 6 months	7 (87.5%)	1 (12.5%)	8 (100%)
	Total	22 (71.0%)	9 (29.0%)	31 (100%)
Smoking	None	16 (88.9%)	2 (11.1%)	18 (100%)	0.042
	Passive	4 (57.1%)	3 (42.9%)	7 (100%)
	Active	2 (33.3%)	4 (66.7%)	6 (100%)
	Total	22 (71.0%)	9 (29.0%)	31 (100%)