Table 5. Coefficients of the logistic regression model with the Stepwise method using a dependent binary variable: 1=one or more NCD; 0= no NCDs, with all remaining variables being independent.
| Model | Parameter | Estimate | Standard error | z | Wald test | ||
|---|---|---|---|---|---|---|---|
| Wald statistic | df | p | |||||
| 1 | (Intercept) | 1.145 | 0.097 | 11.763 | 138.367 | 1 | <0.001 |
| 2 | (Intercept) | 2.879 | 0.459 | 6.276 | 39.382 | 1 | <0.001 |
| Education (years) | -0.111 | 0.028 | -3.956 | 15.646 | 1 | <0.001 | |
| 3 | (Intercept) | -1.198 | 1.436 | -0.834 | 0.696 | 1 | 0.404 |
| Education (years) | -0.103 | 0.029 | -3.567 | 12.722 | 1 | <0.001 | |
| Age | 0.059 | 0.020 | 2.963 | 8.780 | 1 | 0.003 | |
| 4 | (Intercept) | -1.685 | 1.462 | -1.153 | 1.329 | 1 | 0.249 |
| Education (years) | -0.096 | 0.029 | -3.271 | 10.698 | 1 | 0.001 | |
| Age | 0.059 | 0.020 | 2.977 | 8.865 | 1 | 0.003 | |
| GDS15 | 0.142 | 0.052 | 2.758 | 7.604 | 1 | 0.006 | |
Abbreviation: NCD, Non-Transmissible Chronic Diseases; df, degree of freedom.