Table 4. Risk factors for IOP spikes and failures.
| Variable | Any IOP spike |
Procedure failure |
||
| OR (95%CI) | P a | OR (95%CI) | P a | |
| MLT (vs SLT) | 0.33 (0.04-3.08) | 0.29 | 1.51 (0.69-3.30) | 0.30 |
| Age (continuous) | 0.99 (0.93-1.06) | 0.73 | 1.02 (0.98-1.05) | 0.37 |
| Age 60+ | 1.56 (0.30-8.07) | 0.59 | 1.47 (0.65-3.31) | 0.36 |
| Age 70+ | 1.11 (0.25-4.89) | 0.89 | 0.80 (0.35-1.81) | 0.58 |
| Female (vs male) | 3.16 (0.61-16.29) | 0.14 | 0.76 (0.35-1.65) | 0.49 |
| African American (vs all) | 4.44 (0.53-37.27) | 0.11 | 0.97 (0.44-2.15) | 0.94 |
| POAG (vs other OAG) | 1.28 (0.25-6.66) | 0.77 | 1.70 (0.69-4.19) | 0.24 |
| Central corneal thickness | 1.01 (0.98-1.03) | 0.52 | 1.00 (0.99-1.01) | 0.77 |
| Cup-to-disk ratio | 2.82 (0.07-106.7) | 0.57 | 1.06 (0.16-7.21) | 0.93 |
| Baseline IOP | 1.06 (0.90-1.26) | 0.49 | 0.86 (0.77-0.96) | 0.004 |
| Baseline Meds | 1.85 (1.09-3.15) | 0.02 | 0.95 (0.71-1.27) | 0.72 |
| Any preop. meds | 3.19 (0.38-26.90) | 0.23 | 1.42 (0.57-3.56) | 0.45 |
| ≥ 2 preop. meds | 3.76 (0.73-19.45) | 0.09 | 1.07 (0.49-2.34) | 0.87 |
| ≥ 3 preop. meds | 4.72 (1.06-20.97) | 0.04 | 0.63 (0.27-1.49) | 0.29 |
| ≥ 4 preop. meds | 5.67 (1.19-27.01) | 0.04 | 0.62 (0.17-2.28) | 0.47 |
IOP: Intraocular pressure; SLT: Selective laser trabeculoplasty; MLT: Micropulse laser trabeculoplasty; POAG: Primary open-angle glaucoma; OAG: Open angle glaucoma; PXF: Pseudoexfoliation syndrome; CCT: Central corneal thickness; CDR: Cup-to-disc ratio; OR: Odds ratio.