Table 4: Second data collection data in clinic A, C and
D
Clinic A
Clinic C
Clinic D*
Number of medical records retrieved
248
169
156
Percentage of records
with
correct coding in ICPC-2 of
a clinical encounter
91.9%
93.9%
80.7%
95%
Confidence Interval
88.5-95.3%
p<.001
95%
Confidence Interval
90.9-96.8%
p<0.001
Percentage of records
with
complete coding of all
diagnoses/health problems
of a clinical encounter
100.0%
88.3%
90.0%
95%
Confidence Interval
98.5-100%
p<0.01
95%
Confidence Interval
84.3-92.3%
p>0.05
Mean number of codes per
clinical encounter
1.8
1.5
2.1
* Clinic D retrieved all 100
% of their medical records within the sampling period.
Figures in bold denotes statistical significance in
changes using Chi Square test.
Figure 1: Correctness of coding in 4 primary care clinics
Figure 2: Completeness of coding in 4 primary care clinics
