Table 4. Incidence, and hazard ratio of NPDR between patients who received cataract surgery with complications within three months and those who did not (among diabetic patients without diabetic retinopathy).
| Event | PY | Rate# | Crude HR (95% CI) | Adjusted HR† (95% CI) | |
|---|---|---|---|---|---|
| None | 100 | 9010 | 11.1 | 1 (Reference) | 1 (Reference) |
| Cataract surgery | |||||
| Without complications | 138 | 9017 | 15.3 | 1.38 (1.07, 1.79)* | 1.42 (1.10, 1.84)** |
| With complications | 9 | 187 | 48.1 | 4.28 (2.17, 8.47)*** | 5.40 (2.70, 10.8)*** |
PY, person-years; Rate#, incidence rate, per 1,000 person-years; Crude HR: relative hazard ratio
Adjusted HR†: adjusted hazard ratio controlled for age; sex; and comorbidities of hypertension, dyslipidemia, diabetic nephropathy, diabetic neuropathy, heart disease, cardiovascular disease, and peripheral arteriolar disease; and statin, fibrate, ACEI drug use, OHA, and insulin
*P < 0.05
**P < 0.01
***P < 0.001