Table 3

Comparison of adverse event (AE) rates in severity category E-I according to type

Type of adverse eventNorway (%)Sweden (%)Sweden minus Norway difference (95% CI)
Urinary tract infection2.1191.549−0.570 (−0.966 to −0.064)
Surgical complication1.8880.885−1.003 (−1.425 to −0.4209)
Adverse drug event1.8541.625−0.229 (−0.885 to 0.473)
Postoperative wound infection1.6241.588−0.037 (−0.385 to 0.550)
Other infection1.3361.5580.222 (−0.215 to 0.765)
Pneumonia all types1.2790.885−0.394 (−0.770 to −0.045)
Postoperative haematoma0.8340.562−0.272 (−0.521 to 0.026)
Reoperation0.8090.596−0.213 (−0.463 to 0.071)
Pressure ulcer0.6001.2850.684 (0.334 to 1.004)
Other0.4351.0360.601 (0.231 to 1.106)
Organ injury0.4140.289−0.125 (−0.293 to 0.061)
Thrombosis0.4000.325−0.075 (−0.239 to 0.089)
Falls0.3720.7560.384 (0.139 to 0.579)
Allergic reaction0.3060.259−0.047 (−0.162 to 0.093)
Postpartum AE0.2490.3960.147 (−0.075 to 0.395)
Medical equipment0.028*0.033*0.005 (−0.039 to 0.045)
Ventilator-related pneumonia0.0840.1370.053 (−0.027 to 0.178)
Central line infection0.073*0.1610.088 (0.026 to 0.189)
Wrong-side surgery0.000*0.019*0.019 (0.004 to 0.042)
Types specified only in Sweden
 Distended urinary bladder1.667
 Skin or vessel1.131
 Sepsis0.623
 Vital signs0.438
 Haemorrhage—not surgery0.431
 Anaesthesia-related AE0.130
 Neurological0.108
Types specified only in Norway
 Haemorrhage all types0.990
 Postoperative respiratory AE0.215
 Deterioration of chronic condition0.183
 Fractures0.069
  • Rates (%) of hospital admissions with at least one AE according to type, severity category E-I combined, in Norway and Sweden in 2013.

  • *Types with five or less observations greater than zero in Norway or Sweden; the corresponding CI must be interpreted with caution.