Table 1

Patient characteristics and complications during hospitalisation

Population characteristicsFrequency (valid %)
Distribution of records
 Hospital 1200 (33)
 Hospital 2132 (21)
 Hospital 3162 (26)
 Hospital 4122 (20)
Gender: female469 (76)
Admission department
 Surgery489 (81)
 Orthopaedics86 (14)
 Trauma surgery27 (4)
 Other5 (1)
Discharge status
 Alive580 (94)
 Deceased35 (6)
Discharge to
 Nursing home271 (48)
 Transfer department within the hospital73 (13)
 Home with care66 (12)
 Home for the elderly60 (11)
 Home without care44 (8)
 Rehabilitation centre25 (4)
 Other27 (4)
Number of complications during the index admission
 0352 (57)
 1148 (24)
 281 (13)
 ≥335 (6)
Type of complication during the index admission
 Delirium70 (11)
 Ischaemia/heart failure37 (6)
 Urinary tract infection30 (5)
 Pneumonia30 (5)
 Wound infection28 (5)
 Bleeding/haematoma20 (3)
 Other, unspecified complications52 (8)
Age of patientsMean age (SD) (in years)
 Hospital 184.0 (7.9)
 Hospital 283.0 (7.0)
 Hospital 384.5 (7.4)
 Hospital 482.7 (7.6)
Length of hospital stay*Median number of days (range)
 Hospital 111 (2–67)
 Hospital 29 (2–84)‡
 Hospital 312 (3–147)‡
 Hospital 411 (2–107)
  • *The median length of stay was used to eliminate the influence of outliers.

  • ‡Significant difference (Embedded Image=9.41, p=0.003) between median length of stay hospital 2 and 3.