Table 4. Results of multiple linear regression for the occurrence of PNSP and ENSP*.
| Models | Outcome variable: logodds PNSP |
|||
|---|---|---|---|---|
| Exposure | Parameter estimate | p value | R 2 | |
| Model 1 | ||||
| Intercept | –4.75 | |||
| Gradient | Penicillins | 0.29 | 0.0002 | 0.61 |
| Model 2 | ||||
| Intercept | –4.8 | |||
| Gradient | Penicillins | 0.33 | 0.002 | |
| Other β-lactams | –0.05 | 0.808 | ||
| Fluoroquinolones |
–0.11 |
0.73 |
0.62 |
|
| Outcome variable: logodds ENSP |
||||
| Model 1 | ||||
| Intercept | –2.82 | |||
| Gradient | Other β-lactams | 0.41 | 0.003 | 0.48 |
| Model 2 | ||||
| Intercept | –3.26 | |||
| Gradient | Other β-lactams | 0.25 | 0.14 | |
| MLS class | 0.15 | 0.39 | ||
| Fluoroquinolones | 0.30 | 0.35 | 0.56 | |
*PNSP, penicillin-nonsusceptible Streptococcus pneumoniae; ENSP, erythromycin-nonsusceptible S. pneumoniae; MLS, macrolides, lincosamines, and streptogramins.