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Table 2 Comparison between Swedish Quality Registers and the National Patient Register [9]

From: External review and validation of the Swedish national inpatient register

Disease/
Procedure
Quality Register Total number of cases Matching between the Quality Register and the Patient Register (%) Proportion of all cases identified through the Patient Register (%)
Hernia surgery* Swedish Hernia Register 17,707 69.9 92.5
Cholecystectomy* Swedish Register of Gallstone Surgery and ERCP 12,472 79.9 96.4
ERCP*   7,458 54.5 71.2
Multiple Sclerosis* Swedish Multiple Sclerosis Register 13,503 52.9 76.4
Knee arthroplasty The Swedish Knee Arthroplasty Register 11,122 90.1 93.6
Hip arthroplasty The Swedish Hip Arthroplasty Register 14,757 91.0 93.4
Hip fracture The Swedish Hip Fracture Register 15,920 64.0 95.3
Surgery on the abdominal aorta* Swedvasc 1,784 77.4 90.6
Infrainguinal bypass surgery   979 72.4 81.9
Carotid artery surgery   1,584 81.6 95.2
First stroke Swedish Stroke Register 22,202 79.4 96.0
Heart surgery Swedish Heart Surgery Register# 13,440 95.1 97.6
Cataract surgery* National Cataract Register 75,050 75.2 78.6
Prostate cancer* National Prostate Cancer Register 3,985 62.0 82.8
  1. ERCP = endoscopic retrograde cholangiopancreatography
  2. * Quality register compared with the Patient Register (IPR and hospital-based outpatient data). In the other comparisons the Quality Register was compared only with the IPR.
  3. # Currently part of the Register Swedeheart.