Variable | Contrast (odds ratio) | Standard error | z | P > |z| | 95% CI (lower) | 95% CI (upper) |
---|---|---|---|---|---|---|
WHO stage | Â | Â | Â | Â | Â | Â |
 (II vs. I) | 0.53 | 0.41 | − 0.83 | 0.406 | 0.12 | 2.37 |
 (III vs. II) | 0.87 | 0.62 | − 0.20 | 0.839 | 0.21 | 3.50 |
 (IV vs. III) | 0.85 | 0.70 | − 0.20 | 0.843 | 0.17 | 4.26 |