Table 4 Clusters (number and, % of incident reports within the cluster) and descriptive terms of medication administration incident reports (n = 72,390), and RMSSD† for testing the goodness of fit of clusters

1

syringe, driver, infusion, label, pump, run, morphine, line, commence, running

2

infusion, hour, rate, pump, check, run, intravenous, start, running, stop

3

allergy, penicillin, allergic, amoxicillin, reaction, intravenous, note, state, document, antibiotic

4

patch, fentanyl, find, buprenorphine, ‘fentanyl patch’, apply, remove, date, pain, visit

5

insulin, administer, morning, blood, unit, scale, diabetic, glucose, sugar, visit

6

nurse, ward, staff, pharmacy, inform, night, doctor, discharge, pharmacist, home

7

find, date, bottle, box, chemotherapy, treatment, cupboard, pain, attend, book

8

warfarin, dose, INR, chart, dalteparin, prescribe, day, doctor, sign, visit

9

paracetamol, patient, dose, intravenous, discharge, hour, home, pain, oral, medication

10

drop, eye, eye drop, right left, chloramphenicol, bottle, pharmacy, attend, treatment

11

medication, patient, ward, administer, morning, sign, miss, wrong, pharmacy, transfer

12

morphine, check, sulphate, pca, pain, prescription, control, book, oral, syringe

13

patient, tablet, drug, check, oxycodone, find, book, release, control, cupboard

14

injection, administer, scan, unit, contrast, dalteparin, cannula, extravasation, arm, attend

15

dose, patient, prescribe, miss, administer, day, morning, night, sign, due

16

intravenous, antibiotic, prescribe, fluid, intravenous antibiotic, oral, intravenous infusion, hour, saline

17

bag, tpn, find, fluid, pharmacy, run, saline, line, start, running

18

drug chart, drug, dose, prescribe, sign, day, note, morning, notice

Total