| Within 6 months | Across full study period | ||
---|---|---|---|---|
 | Latanoprost N = 632 | Travoprost-Z N = 268 | Latanoprost N = 632 | Travoprost-Z N = 268 |
Changed therapy, n % | 134 (21.2) | 77 (28.7) | 218 (34.5) | 121 (45.2) |
   p-value* | 0.0148 | 0.0026 | ||
Hazard ratio†| 1.519 | 1.499 | ||
   p-value | 0.0035 | 0.0004 | ||
Days to change | Â | Â | Â | Â |
   Mean ± SD | 72.9 ± 51.2 | 54.1 ± 48.0 | 194.8 ± 192.9 | 178.0 ± 196.7 |
   Median | 56.5 | 40.0 | 125.0 | 90.0 |