TABLE 3.
Summary of regression models for selected drug classes
| Dependent variable* | Independent variables in final regression model | Unstandardized coefficients (standard error) | Standardized coefficients | P | r2 |
|---|---|---|---|---|---|
| J01 (overall) | Constant | 16.675 (0.093) | <0.001 | 0.759 | |
| Aboriginal population† | 1.232 (0.093) | 0.474 | <0.001 | ||
| Household income† | 0.500 (0.093) | 0.192 | <0.001 | ||
| Sine component | 2.093 (0.132) | 0.570 | <0.001 | ||
| Cosine component | 1.494 (0.132) | 0.407 | <0.001 | ||
| J01C (penicillins) | Constant | 5.289 (0.037) | <0.001 | 0.814 | |
| Aboriginal population† | 0.548 (0.041) | 0.461 | <0.001 | ||
| Population ≥65 years† | −0.407 (0.041) | −0.343 | <0.001 | ||
| Sine component | 0.873 (0.053) | 0.521 | <0.001 | ||
| Cosine component | 0.487 (0.053) | 0.290 | <0.001 | ||
| J01E (trimethoprim/sulfonamides) | Constant | 0.938 (0.008) | <0.001 | 0.653 | |
| Aboriginal population† | 0.041 (0.008) | 0.232 | <0.001 | ||
| Household size† | −0.093 (0.010) | −0.523 | <0.001 | ||
| Mortality rate† | 0.064 (0.010) | 0.363 | <0.001 | ||
| J01FA (macrolides) | Constant | 3.588 (0.035) | <0.001 | 0.758 | |
| Population <15 years† | 0.390 (0.035) | 0.397 | <0.001 | ||
| Sine component | 0.882 (0.050) | 0.637 | <0.001 | ||
| Cosine component | 0.608 (0.050) | 0.440 | <0.001 |
*
Dependent variable: daily consumption rate in defined daily doses per 1000 population/day;
†
Standardized scores were used