Table 1. Mean (± SD) of Laboratory parameters before and after Imatinib Mesylate therapy

Mean ± SD	Baseline	After imatinib	t-value	p-value	95% C I
PCV	30.1 ± 4.067	37.60 ± 4.949	3.78	0.002	3.24 - 11.76
WBC (/µL)	449000 ± 910600	6016 ± 4045	3.28	0.004	62257.06 -283710.94
ALC (/µL)	20071.20±17267.99	2696.60±1587.69	3.17	0.005	5882.68 -28924.12
CD4+ (/µL)	1774.60 ± 1044	841.80 ± 373.57	7.90	0.001	684.62 -1180.99
Platelet (/µL)	274000 ± 305400	212000 ± 1587.69	0.58	0.567	161396 -285396.21

CI, Confidence Interval; PCV, packed cell volume; WBC, white blood cell; ALC, absolute lymphocyte count.