Table 2.

Patient demographic characteristics.

	Total (n = 39)	Female (n = 32)	Male (n = 7)	P value (Female versus male)
Age (years)	65 ± 9	64.3 ± 8.8	70 ± 6.7	NS#
No improvement (nonresponders)	12 (30.8%)	9 (28.1%)	3 (42.9%)	NS*
Decreased scores ≦ 2	27 (69.2%)	23 (71.9%)	4 (57.1%)	NS*
Average residual scores	4.6 ± 4.2	4.6 ± 4.1	4.8 ± 4.9	NS#
Average onset of improvement (weeks)	8.0 ± 7.7	8.4 ± 8.3	5.8 ± 3.5	NS#
Decreased scores ≦ 5 (high responders)	23 (59.0%)	19 (59.4%)	4 (57.1%)	NS*

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

^# t-test, *chi-squared test.

NS: no significance.