Table 3 Validity of study population. Data shows the six-month follow-up of hospital care contacts after discharge

Patients re-admitted, n (%) ^b

2542 (38)

7194 (36)

1.05 (1.01–1.10)

3145 (39)

8144 (36)

1.09 (1.05–1.14)

Number of admissions of the readmitted, m (sd) ^a

1.9 (1.5)

1.9 (1.45)

1.9 (1.88–1.92)

2.1 (1.6)

1.97 (1.5)

2.0 (1.99–2.02)

Days to first re-admission, m (sd) ^a

60 (55)

61 (55)

60.52 (59.60–61.43)

59 (54)

59 (54)

59 (58.40–59.60)

Admitting departments at first visit, n (%) ^b

n = 2542

n = 7194

n = 3145

n = 8144

Internal medicine

757 (30)

2422 (34)

0.88 (0.83–0.95)

934 (30)

2729 (34)

0.89 (0.82–95)

Geriatric

413 (16)

896 (13)

1.30 (1.18–1.44)

512 (16)

974 (12)

1.36 (1.22–1.52)

Surgery

326 (13)

698 (10)

1.32 (1.16–1.51)

432 (14)

807 (10)

1.39 (1.23–1.56)

Cardiology

282 (11)

714 (10)

1.12 (0.97–1.28)

289 (9)

768 (9)

0.97 (0.85–1.12)

Orthopedic

220 (9)

572 (8)

1.09 (0.93–1.27)

235 (7)

586 (7)

1.04 (0.89–1.21)

Infection

80 (3)

258 (4)

0.88 (0.67–1.13)

112 (4)

236 (3)

1.23 (0.97–1.55)

Neurology

40 (2)

178 (2)

0.64 (0.44–0.90)

120 (4)

327 (4)

0.95 (0.76–1.17)

Urology

77 (3)

204 (3)

1.07 (0.81–1.39)

85 (3)

254 (3)

0.86 (0.67–1.11)

Kidney

41 (2)

74 (1)

1.57 (1.04–2.33)

69 (2)

110 (1)

1.62 (1.18–2.22)

Psychiatry

38 (1)

107 (1)

1.01 (0.68–1.47)

64 (2)

170 (1)

0.97 (0.72–1.31)

Other

268 (11)

1071 (15)

0.71 (0.62–0.81)

295 (9)

1183 (15)

0.64 (0.57–0.73)

Main diagnoses at first visit, n (%) ^b

n = 2522

n = 7136

n = 3136

n = 8119

Certain infectious and parasitic diseases

126 (5)

330 (5)

1.08 (0.87–1.33)

133 (4)

376 (5)

0.92 (0.75–1.12)

Neoplasms

214 (8)

624 (9)

0.97 (0.83–1.14)

207 (7)

660 (8)

0.81 (0.69–0.95)

Blood and blood-forming organs

37 (1)

104 (1)

1.01 (0.67–1.48)

40 (1)

112 (1)

0.92 (0.63–1.34)

Endocrine, nutritional and metabolic

63 (3)

186 (3)

0.96 (0.71–1.28)

89 (3)

222 (3)

1.04 (0.80–1.33)

Mental and behavioral

110 (4)

263 (4)

1.18 (0.94–1.48)

143 (5)

328 (4)

1.13 (0.92–1.38)

Nervous system

96 (4)

233 (3)

1.17 (0.91–1.48)

109 (3)

247 (3)

1.14 (0.90–1.44)

Eye and adnexa

11 (0.5)

31 (0.5)

1.00 (0.46–2.05)

11 (0.5)

35 (0.5)

0.81 (0.37–1.64)

Ear and mastoid process

8 (0.5)

20 (0.5)

1.13 (0.43–2.68)

8 (0.5)

18 (0.5)

1.15 (0.43–2.78)

Circulatory system

507 (20)

1524 (21)

0.94 (0.85–1.04)

627 (20)

1638 (20)

0.99 (0.90–1.09)

Respiratory system

323 (13)

896 (13)

1.02 (0.90–1.16)

434 (14)

1181 (15)

0.95 (0.85–1.06)

Digestive system

172 (7)

517 (7)

0.94 (0.79–1.12)

210 (7)

595 (7)

0.91 (0.78–1.07)

Skin and subcutaneous tissue

31 (1)

93 (1)

0.94 (0.61–1.43)

30 (1)

95 (1)

0.82 (0.52–1.24)

Musculoskeletal system tissue

110 (4)

325 (5)

0.96 (0.76–1.19)

167 (5)

380 (5)

1.14 (0.94–1.37)

Genitourinary system

165 (7)

476 (7)

0.98 (0.82–1.17)

226 (7)

560 (7)

1.04 (0.89–1.22)

Congenital mal/deformations

2

3

–

0

0

–

Symptoms abnormal departmental findings

194 (8)

568 (8)

0.97 (0.82–1.14)

272 (9)

671 (8)

1.05 (0.91–1.21)

Injury, poisoning

283 (11)

760 (11)

1.05 (0.92–1.21)

360 (11)

803 (10)

1.16 (1.02–1.32)

External causes of morbidity/mortality

0

0

–

0

0

–

Factors influencing health status

70 (3)

183 (3)

1.08 (0.81–1.143)

70 (2)

198 (2)

0.92 (0.69–1.121)

Codes for special purposes

0

0

–

0

3

–

Visits to emergency departments

n = 3264

n = 14,328

n = 3968

n = 15,011

No admissions (range)

1959 (1–16)

8388 (1–39)

0.98 (0.94–1.01)

1980 (1–56)

7929 (1–56)

0.94 (0.90–1.00)

Admissions (range)

1305 (1–9)

5940 (1–9)

0.94 (0.89–1.00)

1988 (1–9)

7082 (1–11)

1.06 (1.01–1.12)