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Table 3 Characteristics of HCC, patient and visit level variables included in the multilevel analysis.

From: Validity of registration of ICD codes and prescriptions in a research database in Swedish primary care: a cross-sectional study in Skaraborg primary care database

Characteristics of HCCs

Median

Range

   Visits, n

13352

2842-33091

   Patients, n

6350

1493-14573

   Physicians, n

29

4-133

   Coding frequency, %

72

42-93

Characteristics of patients

Numbers

Proportion

   Agegroup

  

-28

47357

31%

29-49

39129

25%

50-67

36357

24%

68-

31689

20%

   Sex

  

Female

83398

54%

Male

71105

46%

Characteristics of visits

  

   ICD-coding

Yes

No

   Visits, n(%)

  

All

245126 (70%)

103650 (30%)

Planned

94013 (65%)

49827 (35%)

Not Planned

151113 (74%)

53823 (26%)

  1. Extracted from SPCD during 1st May 2002 - 31st October 2003