Table 3.
Linear Mixed Effects Analysis. Model 2 predicting mental well-being (WOHL) by Treatment, Connectedness to Nature Scale (CNS), and PHQ-D subscales (PHQ-9, PHQ-15, and stress).
| Model 2 Summary | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Co-Efficient | 95% CI | t (27) | p | Std. Co-ef. | Std. Co-ef. 95% CI |
Fit |
| (Intercept) | −0.21 | (−0.47, 0.04) | −1.73 | 0.095 | −0.36 | (−0.78, 0.07) | |
| Treatment (post) | 0.46 | (0.17, 0.74) | 3.30 | 0.003 | 0.77 | (0.29, 1.24) | |
| CNS | −0.13 | (−0.32, 0.07) | −1.34 | 0.191 | −0.22 | (−0.56, 0.12) | |
| PHQ-9 | −0.03 | (−0.07, 0.02) | −1.14 | 0.265 | −0.22 | (−0.61, 0.17) | |
| PHQ stress | −0.04 | (−0.10, 0.02) | −1.33 | 0.194 | −0.25 | (−0.64, 0.14) | |
| PHQ-15 | 0.00 | (−0.05, 0.05) | 0.13 | 0.895 | 0.03 | (−0.42, 0.48) | |
| Patients‘ ID—random | 0.40 | (0.24, 0.67) | |||||
| Residual—random | 0.32 | (0.22, 0.48) | |||||
| AIC | 80.95 | ||||||
| BIC | 93.39 | ||||||
| R2 (conditional) | 0.74 | ||||||
| R2 (marginal) | 0.35 | ||||||
| Sigma | 0.32 | ||||||
Random effect: patients’ ID. Fixed effects: Treatment, Connectedness to Nature Scale (CNS), Depression (PHQ-9), Stress (PHQ-D), and Somatoform Disorders (PHQ-15). Standardized parameters were obtained by fitting the model on a standardized version of the dataset. 95% Confidence Intervals (CIs) and p-values were computed using a Wald t-distribution approximation.