International classification of diseases (ICD-9): control patients
| Patients (n) presenting disorders2-150 | |||
|---|---|---|---|
| UK | France | Germany | |
| Symptoms, signs, and ill-defined conditions | 2 | 5 | 7 |
| Infectious and parasitic disease | 2 | ||
| Endocrine, nutritional, and metabolic disease | 3 | 4 | 5 |
| Goitre | 3 | ||
| Mental disorders | 6 | 5 | 2 |
| Anxiety or depression | 5 | 5 | |
| Disease of nervous system and sense organs | 2 | 4 | 4 |
| Migraine | 3 | 2 | |
| Diseases of the circulatory system | 3 | 3 | 7 |
| Hypotension or hypertension | 3 | 5 | |
| Venous insufficiency | 2 | ||
| Diseases of the respiratory system | 14 | 5 | 6 |
| Asthma | 5 | 3 | |
| Chronic bronchitis or COPD | 3 | ||
| Polynose | 4 | ||
| Rhinitis or hayfever | 4 | 3 | |
| Diseases of the digestive system | 5 | 3 | 9 |
| Functional or spasmodic cholic disorders | 3 | 6 | |
| Proctitis or constipation | |||
| Diseases of the genitourinary sytem | 1 | 4 | 2 |
| Menopause | 2 | ||
| Disease of the skin and subcutaneous tissue | 6 | 3 | 3 |
| Ezcema | 2 | 2 | |
| Diseases of the mucoskeletal system and connective tissue | 8 | 5 | 11 |
| Arthrosis | 4 | ||
| Osteoarthritis or painful joints | 6 | ||
| Osteoporosis | 3 | ||
| Scoliosis | 2 | ||
↵2-150 Results were expressed as the total number of patients presenting the principal classes (based on the ICD-9) and the disorder found most often within a given class. COPD=chronic obstructive airway disease.