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Subgroup analysis of XEN efficacy.
| Solo-procedure | Combined procedure | Solo-procedure phakic | Solo-procedure pseudophakic | Caucasian | Non-caucasian | |
|---|---|---|---|---|---|---|
| n | 77 | 30 | 40 | 37 | 76 | 31 |
| IOP preoperatively (mm Hg) | 20.6 | 19.9 | 20.0 | 21.2 | 20.3 | 20.7 |
| IOP at 6 months (mm Hg) | 14.8 | 17.1 | 14.2 | 15.6 | 15.3 | 15.7 |
| Number of medications preoperatively | 3.0 | 2.3 | 2.8 | 3.2 | 2.7 | 2.9 |
| Number of medications at 6 months | 0.5 | 0.9 | 0.5 | 0.6 | 0.7 | 0.5 |
| Needling (% of patients) | 32 | 40 | 25* | 43* | 31 | 42 |
*Statistically significant difference at p < 0.05.
