Table 1.
Descriptive and general data from controls and depressed patients.
| Variables | Control (n = 48) |
Depression (n = 51) |
p-Value |
|---|---|---|---|
| Gender (F/M) | 22/26 | 30/21 | 0.230 1 |
| Age (years) | 42.58 ± 11.54 | 52.71 ± 14.57 | 0.153 2 |
| SAAS (total) | 108.17 ± 59.32 | 480.77 ± 160.62 | <0.001 3 |
| IGF-2 (ng/mL) | 116.69 ± 53.40 | 249.86 ± 119.57 | <0.001 3 |
| IGFBP-1 (ng/mL) | 7.57 ± 5.08 | 12.84 ± 14.31 | 0.061 3 |
| IGFBP-3 (ng/mL) | 498.26 ± 89.57 | 506.12 ± 139.91 | 0.809 3 |
| IGFBP-5 (ng/mL) | 86.14 ± 15.12 | 86.95 ± 20.69 | 0.904 3 |
| IGFBP-7 (ng/mL) | 67.01 ± 25.14 | 82.90 ± 26.44 | <0.01 4 |
The mean values and the standard deviations of the different variables are shown. The p-value is shown in the fourth column, and is reported according to the APA style; 1 The Chi-square test was used to compare the distribution of sex between groups. 2 The median test for independent samples was used to compare the age distribution between both groups. 3 The Mann–Whitney test was employed to compare two continuous variables whenever at least one distribution did not adjust for a normal distribution. 4 Student’s t test was used. SAAS: Self-Assessment Anhedonia Scale. IGF: Insulin-like growth factor. IGFBP: Insulin-like growth factor-binding protein.