Table 1

Demographic characteristics of subjects

Characteristic

No.
Mean(± SD) or %

Age (y)

251
28.9 ± 5.5
Duration of infertility (y)

251
6.9 ± 4.5
No. of previous treatment

251
1.3 ± 1.4




Education
No education
6
2.4

Primary school
36
14.3

Junior school
60
23.9

High school
12
4.8

Intermediate education
88
35.1

University
49
19.5




Type of infertility
Primary
230
91.6

Secondary
21
8.4




Cause of infertility
Male
86
34.3

Female
108
43

Combined
32
12.7

Unexplained
25
10




Result of β-hCG
Positive
61
24.3

Negative
190
75.7

Khademi et al. BMC Psychiatry 2005 5:25   doi:10.1186/1471-244X-5-25