Table 5 Descriptive characteristics for five of the eleven subgroups of patients with combinations of clusters

n

106

278

134

365

108

Memberships for clusters, mean % (SD)

Cluster 3: 67 (3)

Cluster 5: 29 (5)

Cluster 3: 25 (5)

Cluster 5: 74 (6)

Cluster 5: 48 (6)

Cluster 6: 50 (6)

Cluster 5: 25 (4)

Cluster 6: 72 (6)

Cluster 1: 69 (5)

Cluster 3: 29 (4)

Sex (female), n (%)

43 (41)

155 (56)

89 (66)

225 (62)

66 (61)

Age (in years), median (IQR)

70 (18.1)

61 (21.4)

62 (23.5)

62 (25.1)

68 (17.3)

Medical specialties involved, median (IQR)

4 (2)

3 (1)

3 (1)

3 (2)

3 (1)

Outpatient visits, median (IQR)

8 (5)

4 (4)

6 (4)

5 (5)

6 (4)

ED visits, median (IQR)

0 (1)

0 (1)

0 (1)

0 (1)

0 (0)

Inpatient days, median (IQR)

0 (5)

0 (0)

0 (2)

0 (3)

0 (0)

Diagnoses, median (IQR)

5 (3)

3 (2)

4 (2)

3 (3)

4 (1)

Top 5 specialties (% involved)

1. Neurology (100)

2. Pulmonology (100)

3. Cardiology (54)

4. Otorhinolaryngology (52)

5. Ophthalmology (19)

1. Neurology (100)

2. Pulmonology (100)

3. General surgery (21)

4. Ophthalmology (14)

5. Rheumatology (10)

1. Internal medicine (100)

2. Neurology (100)

3. Orthopedic surgery (43)

4. Anesthesiology (31)

5. Otorhinolaryngology (28)

1. Internal medicine (100)

2. Neurology (100)

3. Ophthalmology (18)

4. Urology (17)

5. Orthopedic surgery (12)

1.  Dermatology (100)

2. Pulmonology (100)

3. Ophthalmology (39)

4. General surgery (25)

5. Orthopedic surgery (19)

Top 10 diagnoses (%)

1. Other nervous system disorders (47)

2. Chronic obstructive pulmonary disease and bronchiectasis (30)

3. Other upper respiratory disease (25)

4. Residual codes; unclassified (22)

5. Asthma (17)

6. Other circulatory disease (14)

7. Spondylosis; intervertebral disc disorders; other back problems (13)

8. Cardiac dysrhythmias (12)

9. Other aftercare (12)

10. Other connective tissue disease (10)

1. Other nervous system disorders (38)

2. Asthma (28)

3. Spondylosis; intervertebral disc disorders; other back problems (19)

4. Chronic obstructive pulmonary disease and bronchiectasis (17)

5. Conditions associated with dizziness or vertigo (15)

6. Cancer of bronchus; lung (15)

7. Headache; including migraine (13)

8. Other upper respiratory disease (12)

9. Pneumonia (except that caused by tuberculosis or sexually transmitted disease) (9)

10. Other connective tissue disease (7)

1. Spondylosis; intervertebral disc disorders; other back problems (44)

2. Other nervous system disorders (26)

3. Other connective tissue disease (18)

4. Residual codes; unclassified (16)

5. Headache; including migraine (11)

6. Other ear and sense organ disorders (10)

7. Osteoporosis (10)

8. Osteoarthritis (9)

9. Essential hypertension (9)

10. Other screening for suspected conditions (not mental disorders or infectious disease) (8)

1. Other nervous system disorders (34)

2. Spondylosis; intervertebral disc disorders; other back problems (16)

3. Residual codes; unclassified (14)

4. Essential hypertension (9)

5. Headache; including migraine (9)

6. Other screening for suspected conditions (not mental disorders or infectious disease) (8)

7. Diabetes mellitus with complications (8)

8. Osteoporosis (7)

9. Malaise and fatigue (7)

10. Other connective tissue disease (7)

1. Other skin disorders (36)

2. Other non-epithelial cancer of skin (34)

3. Asthma (28)

4. Chronic obstructive pulmonary disease and bronchiectasis (24)

5. Other nervous system disorders (19)

6. Other inflammatory condition of skin (18)

7. Cataract (13)

8. Other connective tissue disease (11)

9. Other and unspecified benign neoplasm (11)

10. Other eye disorders (8)