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Table 4 Variation in the use of diagnoses within eight diagnostic groups at the 14 general practices. The mean % of all diagnoses is the mean of the 14 individual practice means.

From: The potential of electronic medical record systems to support quality improvement work and research in Norwegian general practice

Field ICPC codes for diagnosis grouping Mean % of all diagnoses Lower 95% CI Upper 95% CI
Psychiatric conditions P01-P29, P70-P99 13.2 10.2 16.2
Back problems L02, L03, L84-L86 5.1 4.0 6.3
Hypertension K86, K87 2.9 1.9 3.9
Heart disease K74-K80 2.6 1.6 3.7
Diabetes T90 2.0 1.3 2.7
Asthma R96 1.7 1.1 2.3
Respiratory R05, R09-R23, R70-R83, H71-H74 1.2 0.9 1.5
Elevated cholesterol T93 0.5 0.2 0.8
  1. CI = Confidence interval ICPC = International Classification for Primary Care