Table 2.

Baseline characteristics.

Variables	Active acupuncture (n = 44)	Sham acupuncture (n = 46)	χ2 or ta	P a
Age, mean, y	38.09 ± 13.33	39.41 ± 13.93	−0.460	0.647
Female	28(63.64%)	30(65.22%)	0.03	0.876
Total score of PSQI	13.45 ± 1.76	13.17 ± 1.91	0.724	0.471
SAS score	59.66 ± 6.59	61.24 ± 6.99	−1.102	0.273
SDS score	60.00 ± 4.53	61.59 ± 6.12	−1.393	0.167

Data are presented as the mean ± SD or number (%).

PSQI, Pittsburgh Sleep Quality Index; SAS, Zung Self-Rating Anxiety Scale; SDS, Zung Self-Rating Deprssion Scale.

^aComparison between active acupuncture and sham acupuncture by χ² or unpaired t-test.