Table 2.
Incident Cases | Prevalent Cases | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
POAG | XFG | p-value | POAG | XFG | p-value | ||||||
N | % | N | % | N | % | N | % | ||||
Total enrollees | 7339 | 192 | 89036 | 2745 | |||||||
Diagnostic Procedures (%) | Any glaucoma diagnostic test* | 7121 | 97.0% | 189 | 98.4% | 0.25 | 83833 | 94.2% | 2657 | 96.8% | <0.0001 |
Perimetry | 6216 | 84.7% | 166 | 86.5% | 0.50 | 71079 | 79.8% | 2341 | 85.3% | <0.0001 | |
Gonioscopy | 2716 | 37.0% | 105 | 54.7% | <0.0001 | 23736 | 26.7% | 1082 | 39.4% | <0.0001 | |
Fundus Photography | 2964 | 40.4% | 92 | 47.9% | 0.036 | 31115 | 35.0% | 974 | 35.5% | 0.56 | |
Other ocular imaging | 5577 | 76.0% | 145 | 75.5% | 0.88 | 62333 | 70.0% | 1964 | 71.6% | 0.083 | |
Any other diagnostic test± | 4156 | 56.6% | 135 | 70.3% | 0.0002 | 46188 | 51.9% | 1673 | 61.0% | <0.0001 | |
Therapeutic Procedures (%) | Any Ocular Surgery** | 3282 | 44.7% | 118 | 61.5% | <0.0001 | 32277 | 36.3% | 1495 | 54.5% | <0.0001 |
Any Glaucoma Surgery** | 1443 | 19.7% | 55 | 28.7% | 0.002 | 12591 | 14.1% | 860 | 31.3% | <0.0001 | |
Trabeculectomy | 68 | 0.9% | 4 | 2.1% | 0.10 | 1611 | 1.8% | 233 | 8.1% | <0.0001 | |
GDI | 26 | 0.4% | 2 | 1.0% | 0.12 | 889 | 1.0% | 103 | 3.8% | <0.0001 | |
LTP | 1120 | 15.3% | 38 | 19.8% | 0.086 | 8585 | 9.6% | 511 | 18.6% | <0.0001 | |
Medication | 6839 | 93.2% | 175 | 91.2% | 0.27 | 87629 | 98.4% | 2680 | 97.6% | 0.0012 | |
Cataract Surgery | 1391 | 19.0% | 67 | 34.9% | <0.0001 | 10964 | 12.3% | 643 | 23.4% | <0.0001 |
Primary open angle glaucoma (POAG); Exfoliation Glaucoma (XFG); Glaucoma Drainage Implant (GDI); Laser Trabeculoplasty (LTP).
Proportions capture enrollees who underwent 1 or more of a given service during the 2 years of follow-up.
Any glaucoma diagnostic test includes gonioscopy, fundus photography, perimetry, optical coherence tomography.
Any other diagnostic test – see Online Table 1 available at http://www.ajo.com for included CPT codes.
Any Glaucoma Surgery includes laser iridotomy, trabeculoplasty, trabeculectomy and glaucoma drainage implant insertion.
Any Ocular Surgery includes all laser and incisional ophthalmic surgeries, including but not limited to glaucoma surgeries.
Group comparisons were performed using Pearson chi-square test