Table 5.
Patients and cost ratios for selected EDC categories and EDC count.
| Selected EDC categories |
EDC count |
||||||
|---|---|---|---|---|---|---|---|
| Category | % patients | Cost ratio | 95% CI | Count | % patients | Cost ratio | 95% CI |
| None | 19.39 | 1.00 | – | 0 | 19.39 | 1.00 | – |
| Low back pain | 25.80 | 1.10 | (1.08,1.13) | 1 | 19.56 | 2.11 | (2.01,2.21) |
| Dermatitis and eczema | 19.57 | 1.12 | (1.09,1.15) | 2 | 16.36 | 3.34 | (3.20,3.48) |
| Hypertension | 18.36 | 1.38 | (1.35,1.42) | 3 | 12.54 | 4.64 | (4.44,4.85) |
| Anxiety, neuroses | 16.50 | 1.21 | (1.18,1.24) | 4 | 9.20 | 6.13 | (5.85,6.42) |
| Depression | 16.21 | 1.29 | (1.26,1.33) | 5 | 6.75 | 7.73 | (7.37,8.11) |
| Asthma | 14.26 | 1.50 | (1.46,1.54) | 6 | 4.90 | 9.08 | (8.65,9.53) |
| Cervical pain syndromes | 13.20 | 1.10 | (1.07,1.12) | 7 | 3.51 | 11.01 | (10.40,11.66) |
| Arthritis | 11.17 | 1.13 | (1.09,1.16) | 8 | 2.41 | 12.16 | (11.49,12.86) |
| Irritable bowel syndrome | 6.78 | 1.19 | (1.14,1.23) | 9 | 1.74 | 13.74 | (12.92,14.61) |
| Gastroesophageal reflux | 6.70 | 1.27 | (1.23,1.31) | 10 | 1.25 | 15.02 | (14.13,15.97) |
| Acute myocardial infarction | 5.84 | 1.26 | (1.22,1.30) | 11 | 0.82 | 16.96 | (15.81,18.20) |
| Malignant neoplasm of the skin | 2.53 | 1.07 | (1.02,1.12) | 12 | 0.57 | 17.18 | (15.89,18.58) |
| Malignant neoplasms, breast | 1.09 | 1.56 | (1.46,1.68) | 13 | 0.36 | 19.52 | (17.87,21.32) |
| Emphysema, chron bronchitis, COPD | 2.38 | 1.30 | (1.24,1.36) | 14 | 0.27 | 19.05 | (17.17,21.13) |
| 15 | 0.15 | 21.04 | (18.65,23.73) | ||||
| 16 | 0.09 | 24.69 | (21.43,28.46) | ||||
| 17 | 0.07 | 24.00 | (19.98,28.83) | ||||
| 18+ | 0.08 | 27.60 | (24.08,31.63) | ||||
Notes. Estimates from GLM log Poisson model also including age, gender, deprivation and practice effects. Cost ratios for disease categories are the estimated costs for a patient with the relevant disease divided by the estimated cost for a patient without that disease. Cost ratios for counts are the estimated costs for a patient with the relevant count divided by the estimated cost for a patient with no disease (zero count).