Proportional hazards regression analysis. Univariate and multivariate estimate hazards. Independent variable relative NRR was introduced as continuous
| Factor | Unadjusted estimated hazard | Unadjusted 95% CI |
Adjusted estimated hazard | Adjusted 95% CI |
|---|---|---|---|---|
| Relative NRR area (%) | 0.928 | 0.79; 0.979 | 0.938 | 0.887; 0.992 |
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↵p <0.05.









