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Table 3 Time to first ICD-9 Musculoskeletal Code at Encounter with ICPC Reference Standard Code (n = 1305 patients)

From: Identifying musculoskeletal conditions in electronic medical records: a prevalence and validation study using the Deliver Primary Healthcare Information (DELPHI) database

 

# Patients

% Patients

Cumulative %

Mean Monthsa

Standard Deviation

Total number of patients with an ICPC Reference Standard Coded Encounter

1305

100.0

   

Number of Visits to ICD-9 Code

1st Visit

720

55.2

55.2

n/a

 

2nd

159

12.2

67.4

8.3

8.9

3rd

70

5.4

72.7

13.0

10.8

4th

24

1.8

74.6

12.5

9.1

5th+

25

1.9

76.5

19.5

8.8

Remainder of patients without an ICD-9 Musculoskeletal Code

307

23.5

 

n/a

 
  1. aMean number of months between first ICPC Musculoskeletal coded encounter and first ICD-9 Musculoskeletal coded encounter