Table 1. Baseline characteristics (intention-to-treat population).

	Acupuncture group	Artificial tears group
Characteristics	(n = 75)	(n = 75)
Age (year, mean (SD))	47.95 (11.11)	46.05 (13.10)
Sex M/F (frequency)	22/53	19/56
Menopause (frequency)	26	25
Symptom duration (frequency, mean (SD))	6.00 (5.69)	5.91 (4.97)
Computer or TV use (hour/week, mean (SD))	16.87 (15.53)	18.61 (16.80)
Contact lens wearer (frequency)	7	6
Smoker (frequency)	7	7
Full time-outdoor workers/full time-indoor workers (frequency)	36/4	27/3
>10 years of school education (frequency)	65	67
Previous treatment (frequency)
Artificial tears use	33	44
Other treatment use	5	3
No-treatment	37	28
Past history related to dry eye (frequency)
Sjogren syndrome	0	0
Keratitis	7	10
Cataract	2	3
Glaucoma	2	1
LASIK surgery	1	6
Blepharitis	2	3