Table 2.

Cataract cases and endophthalmitis rates for the periods 2002–2005 and 2006–2014

Period	Cataract cases	PCE cases	Rate/1,000	Odds ratio	95% CI	χ2	P
2002–2005	12,400	5	0.4	18.1	2.11–154.9	13.5	0.00024
2006–2014	44,863	1	0.022

Notes: Baseline, 2002–2005: preoperative pledget soaked with current-generation fluoroquinolone drops, povidone–iodine skin and ocular surface preparation, vancomycin 20 μg/mL irrigation, incision hydration, and eye pressurization with BSS; and intervention, 2006–2014: switch from BSS to the vancomycin/BSS irrigation fluid for incision hydration and eye pressurization, while maintaining the baseline prophylactic measures. Statistics compare the baseline period to the intervention period.

Abbreviations: BSS, balanced salt solution; CI, confidence interval; PCE, postcataract endophthalmitis.