Table 2.

Distribution of older people in Amirkola according to GDS scores and testosterone levels (Mean±SD) in 2011-12

Variable	N	Testosterone levels (Mean±SD )
GDS Score
Normal Low Moderate Severe	593 173 51 13	4.94±4.22 4.25±3.94 4.11±2.98 3.74±1.33
Self health rate
Very bad Bad Relatively good Good Excellent for my age	9 45 137 455 184	3.67±1.77 4.69±4.93 4.27±3.38 4.89±4.29 4.71±3.85

As shown in table 3, in the logistic regression model, after adjusting with other effective variables on depression such as age and educational levels, and living alone [OR=2.6,95%CI: 1.17-5.82, P=0.02], testosterone levels [OR=1.67, 95% CI: 1.03-2.72, P=0.038] had the greatest impact.