Table 2

Mean number of coded diagnoses, procedures, complications, unspecified and Z codes by year, season, site and coder characteristics

Variable

Diagnoses

Procedures

Complications

Z codes

Codes ending in 8

Codes ending in 9


Total sample

4.3

1.3

0.2

0.6

0.4

0.7


Year (fiscal)

2002

5.2

1.4

0.3

0.7

0.5

0.8

2003

4.7

1.4

0.2

0.6

0.4

0.8

2004

4.1

1.3

0.2

0.5

0.3

0.7

2005

3.8

1.2

0.2

0.5

0.3

0.7

2006

3.9

1.3

0.2

0.6

0.3

0.6


Season

Jan-Mar

4.2

1.3

0.2

0.6

0.4

0.7

Apr-June

4.3

1.3

0.2

0.6

0.4

0.7

July-Sep

4.3

1.3

0.2

0.6

0.4

0.7

Oct-Dec

4.2

1.3

0.2

0.6

0.4

0.7


Site

A

3.9

1.3

0.2

0.3

0.5

0.8

B (tertiary)

5.0

1.5

0.3

0.6

0.5

0.7

C

3.8

1.2

0.1

0.7

0.3

0.5

D

3.9

1.1

0.1

0.5

0.3

0.7


Volume of coding

Low volume

4.3

1.3

0.2

0.5

0.4

0.6

High volume

4.2

1.2

0.2

0.6

0.3

0.7


Employment status

Part-time

4.0

1.4

0.2

0.7

0.3

0.6

Full-time

4.4

1.2

0.2

0.5

0.4

0.8


Hennessy et al. BMC Health Services Research 2010 10:99   doi:10.1186/1472-6963-10-99

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