Table 2. Characteristics of the Case–Control Studies
Study, YearLocationFollow‐Up Period, yAge (Mean), yOutcomeOutcome AssessmentAscertainment of Statins ExposureCases, nControls, nOverall Quality
Schlienger, 200112UK<540 to 79 (>60) Cataract
Cataract surgery
ICD‐8, OMXIS procedure code 156 Drug prescription
Computerized record
740528 3277
Smeeth, 200313UK<5≥40 (75)CataractICD‐8 Drug prescription
Computerized record
15 47915 4797
Fong, 201214US<5≥50 (>60)Cataract surgeryCPT code Drug prescription
Computerized record
13 58334 0496
Wise‐BC, 201421Canada<5>70 Cataract
Cataract surgery
Computerized record Drug prescription
Computerized record
162 501650 0046
Wise‐IMS, 201421Canada<540 to 85 (>70) Cataract
Cataract surgery
Computerized record Drug prescription
Computerized record
45 065450 6507
Erie, 201622US<5≥50 (>60)Cataract Surgery ICD‐9
CPT code
Drug prescription
Computerized record
602460246
  • CPT indicates current procedural terminology; ICD, International Classification of Diseases; OMXIS, Oxford Medical Information System.