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Table 2 Types of potential medication administration errors (MAEs) in 3-month observation period

From: Medication administration errors for older people in long-term residential care

Type of potential MAE All Homes
No. (%)1
Residential Homes
No. (%)1
Nursing Homes
No. (%)1
Incidence Rate Ratio2
(95% CI)
Attempting to give a 4-hourly medication too early (< 3.50 hrs) 1,021 (0.5) 604 (0.4) 417 (0.8) 1.81
(1.60 - 2.05)**
Attempting to give other medication at wrong time 586 (0.3) 412 (0.3) 174 (0.3) 1.11
(0.93 - 1.32)
Attempting to give medication on the wrong day 359 (0.2) 231 (0.2) 128 (0.2) 1.46
(1.17 - 1.80)**
Attempting to give medication to the wrong resident 233(0.1) 164 (0.1) 69 (0.1) 1.11
(0.83 - 1.46)
Attempting to give a medication that has been discontinued 90 (0.05) 70 (0.1) 20 (0.04) 0.75
(0.46 - 1.23)
Overall Total 2,289 (1.2) 1,481(1.1) 808 (1.6) 1.43
(1.32 to 1.56)**
  1. 1 Error incidence rate calculated as % of total administrations in 3 month observation period
  2. 2 Ratio of rate in nursing homes compared to residential homes. 95% confidence interval (CI) calculated for incidence rate ratio.
  3. ** Significant p < 0.001