Table 1.

Demographic data and brand preference in 459 patients.

	Total (n = 459)	Brand response (n = 141)	Imported drugs group (n = 256)	Domestic drugs group (n = 203)
GENDER
Female	236	75	142	93
Male	223	66	114	110
AGE
<30 years	47	10	29	18
30–60 years	306	89	176	130
>60 years	106	42	51	55
EDUCATION
Low	198	81	73	125
Middle	202	54	139	63
High	59	6	44	15
ALCOHOL
Every day	2	0	1	1
Often	26	8	16	10
Sometimes	155	49	79	76
Never	276	84	160	116
SMOKE
Yes	128	43	67	61
No	331	98	189	142