Table 1

Medication error characteristics

CharacteristicN%
Year of reporting
2016178053.4
2017157246.6
Total3372100.0
Medication process stage*
Administration254467.8
Prescribing88823.7
Preparation/Dispensing2316.2
Storage872.3
Error type*
Wrong dose/strength or frequency (total)135437.5
Omitted medicine or dose83623.2
Wrong drug54815.2
Wrong route1985.5
Contraindication1915.3
Wrong patient1865.2
Wrong formulation or presentation942.6
Adverse drug reaction772.1
Wrong dispensing label/instruction661.8
Wrong storage601.7
Reported by
Nurse210362.4
Physician38511.4
Other staff1695.0
Leader712.1
Bioengineer/Engineer431.3
Midwife371.1
Missing56416.7
 Total3372100.0
Patient age (years)
0–91845.5
10–191013.0
20–291835.4
30–392026.0
40–492407.1
50–5934210.1
60–6955916.6
70–7973421.8
80–8952415.5
90–1121805.3
Missing1233.6
Total3372100.0
Degree of harm
No harm127237.7
Low harm127737.9
Moderate harm53816.0
Severe harm1775.2
Death270.8
Missing812.4
Total3372100.0
  • *The total number of error types and medication process stages was greater than the number of incidents because the classification system permitted more than one category to be selected for one incident.