Table 2

Distribution of PSPs (n=2589) among specific PSP types in ambulatory care

PSP types per treatment areaPSP (n)PSP (%)95% CI
Anamnesis/diagnostic proceduresImportant questions about complaints not asked51519.918.4 to 21.5
Insufficient physical examination38114.713.4 to 16.1
Medically necessary examination not made1576.15.2 to 7.0
Results communicated too late/not at all1365.34.4 to 6.2
Wrong diagnosis1284.94.2 to 5.8
Serious illness not recognised or recognised too late973.83.1 to 4.5
Faulty examination692.72.1 to 3.3
Incorrect test result communicated542.11.6 to 2.7
Wrong examination461.81.3 to 2.3
MedicationWrongly prescribed drugs833.22.6 to 3.9
Prescribed without considering the interaction with another drug783.02.4 to 3.7
Necessary drugs not prescribed722.82.2 to 3.5
Prescribed in the wrong dose/form652.52.0 to 3.2
Prescribed, although the doctor knew of an intolerance542.11.6 to 2.7
Discontinued too early/too late/not at all461.81.3 to 2.3
Vaccination, injection, infusionAdministered without noticing the interaction with another medication421.61.2 to 2.2
Administered in the wrong place230.90.6 to 1.3
Not administered, although necessary200.80.5 to 1.2
Administered with a wrong active substance190.70.5 to 1.1
Administered, even though the doctor knew of an intolerance80.30.1 to 0.6
AftercareNot at all341.30.9 to 1.8
Belated281.10.7 to 1.5
Wrong40.10.1 to 0.4
Outpatient surgeryNot done properly441.71.3 to 2.3
Performed too late90.40.2 to 0.7
Result of surgery not communicated/communicated too late40.20.1 to 0.4
Result of surgery communicated incorrectly20.10.0 to 0.3
Wrong surgery10.00.0 to 0.2
Office administrationExamination results not/not completely available1525.95.0 to 6.8
Confused with another patient732.82.2 to 3.5
Home visit not performed291.10.8 to 1.6
Other areasOther PSP1164.53.7 to 5.3
  • PSP, patient safety problem.