Table 4.
Linear Regression Model Results.
| IGF-1 Post-Exercise | |||||
|---|---|---|---|---|---|
| DF | β (SE) | p | Effect Size | 95% Effect Size Confidence Interval | |
|
| |||||
| Model 1 (Depression Severity) | 131 | ||||
| Healthy Control | REF | REF | REF | ||
| Mild Depression | −0.13 (3.11) | 0.97 | 0.01 | −0.40, 0.42 | |
| Moderate Depression | −1.09 (4.51) | 0.81 | 0.07 | −0.52. 0.66 | |
| Age | −0.18 (0.15) | 0.22 | |||
| Sex | −2.81 (2.61) | 0.29 | |||
| IGF-1 Pre-Exercise | 0.94 (0.03) | <0.001 | |||
| Model 2 (Antidepressant Usage) | 140 | ||||
| Healthy Control | REF | REF | REF | ||
| SSRI | 0.20 (4.26) | 0.96 | −0.01 | −0.58, 0.55 | |
| Other | 1.33 (4.23) | 0.75 | −0.09 | −0.65, 0.47 | |
| No Antidepressant | −1.41 (3.13) | 0.65 | 0.09 | −0.32, 0.51 | |
| Age | −0.22 (0.14) | 0.14 | |||
| Sex | −3.28 (2.51) | 0.19 | |||
| IGF-1 Pre-Exercise | 0.95 (0.03) | <0.001 | |||
| Model 3 (Physical Activity) | 106 | ||||
| HEPA | REF | REF | REF | ||
| Inactive | −4.35 (3.76) | 0.25 | 0.34 | −0.25, 0.93 | |
| Insufficiently Active | 2.93 (3.09) | 0.35 | −0.23 | −0.72, 0.25 | |
| Age | −0.09 (0.15) | 0.55 | |||
| Sex | −4.59 (2.42) | 0.06 | |||
| IGF-1 Pre-Exercise | 0.96 (0.03) | <0.001 | |||
Note: HAMD Categories: 0–6 (Healthy Control), 7–14 (Mild Depression Severity), 15+ (Moderate Depression Severity). HEPA: Health Enhancing Physical Activity. Inactive (0 – 599 MET min/wk), Minimally Active (600 – 2999 MET min/wk), HEPA (3000+ MET min/wk)