Table 2

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

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

ERCP = endoscopic retrograde cholangiopancreatography

* 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.

# Currently part of the Register Swedeheart.

Ludvigsson et al. BMC Public Health 2011 11:450   doi:10.1186/1471-2458-11-450