Table 5 Main diagnostic criteria for inclusion classified in terms of International Classification of Primary Care (ICPC) diagnoses ^a for clinical drug trials

T90: Diabetes, non-insulin dependent

44

20.2

1

K86: Hypertension, uncomplicated

22

10.1

7

R96: Asthma

19

8.7

4

T93: Lipid disorder

18

8.3

2

R80: Influenza

11

5.0

7

L89: Osteoarthrosis of hip

7

3.2

2

L90: Osteoarthrosis of knee

7

3.2

3

N89: Migraine

7

3.2

1

R95: Chronic obstructive pulmonary disease

6

2.8

2

P76: Depressive disorder

5

2.3

2

K78: Atrial fibrillation/flutter

4

1.8

L88: Rheumatoid/seropositive arthritis

4

1.8

T82: Obesity

4

1.8

D07: Dyspepsia/indigestion

3

1.4

2

P70: Dementia

3

1.4

2

T99: Endocrine/metabolic/nutritional disease, other

3

1.4

D84: Oesophagus disease

2

0.9

2

D93: Irritable bowel syndrome

2

0.9

1

L84: Back syndrome without radiating pain

2

0.9

1

L91: Osteoarthrosis, other

2

0.9

1

L95: Osteoporosis

2

0.9

N04: Restless legs

2

0.9

P06: Sleep disturbance

2

0.9

R78: Acute bronchitis/bronchiolitis

2

0.9

2

U04: Incontinence, urine

2

0.9

Y07: Impotence, not otherwise specified

2

0.9

A23: Risk factor, not otherwise specified

1

0.5

1

A91: Abnormal result investigation, not otherwise specified

1

0.5

D12: Constipation

1

0.5

K76: Ischemic heart disease without angina

1

0.5

K99: Cardiovascular disease, other

1

0.5

L29: Symptom/complaint, musculoskeletal, other

1

0.5

L92: Shoulder syndrome

1

0.5

1

L93: Tennis elbow

1

0.5

1

L99: Musculoskeletal disease, other

1

0.5

R28: Limited function/disability (respiratory)

1

0.5

R75: Sinusitis, acute/chronic

1

0.5

1

R76: Tonsillitis, acute

1

0.5

1

R81: Pneumonia

1

0.5

R97: Allergic rhinitis

1

0.5

S74: Dermatophytosis

1

0.5

1

T89: Diabetes, insulin dependent

1

0.5

X11: Menopausal symptom/complaint

1

0.5

No diagnosis applicable

14

6.4

2

Total^b

218

100