Table 1

Descriptive information for each observed error (units of insulin per hour)

Error typeScenarioRate entered*Rate change made†Correct rate‡Correct rate change§Rate discrepancy¶
Incorrect magnitude of change42−1.52.5−1−0.5
530.53.51−0.5
530.53.51−0.5
64152−1
8312.50.50.5
962511
Incorrect direction of change22−262−4
81.5−0.52.50.5−1
93−151−2
104.512.5−12
104.512.5−12
110.5−0.51.50.5−1
Omission of required changed43.502.5−11
43.502.5−11
63052−2
74.503.5−11
103.502.5−11
Inappropriate stop or pause50−2.53.51−3.5
50−2.53.51−3.5
Unnecessary change10.5−0.510−0.5
  • *The final rate accepted at the pump by participant.

  • †The increase (positive numbers) or decrease (negative numbers) in rate from the rate settings at the start of the scenario.

  • ‡The infusion rate recommended by the protocol.

  • §The correct increase (positive numbers) or decrease (negative numbers) in rate recommended by the protocol.

  • ¶The difference in rate entered and rate recommended by the protocol.