Table 1.
Accuracy Results for Bolus and Basal Rate Delivery.
| Bolus delivery (n = 225) | Basal delivery (648 h) | ||||
|---|---|---|---|---|---|
| 0.1 U | 0.2 U | 1 U | 0.1 U/h | 1 U/h | |
| Mean deviation | 1.3% | −2.5% | −0.3% | +7.9% | +1.2% |
| SD of deviation for boluses/1-h windows | 12.9% | 18.5% | 13.6% | 21.7% | 10.0% |
| Boluses/1-h windows within ±15% | 76.4% | 61.3% | 71.6% | 52.7% | 86.2% |
| Accuracy limits of manufacturer a | ±50% | ±25% | ±5% | ±5% | ±5% |
| Boluses/1-h windows within accuracy limits of manufacturer | 100.0% | 80.4% | 40.4% | 19.2% | 40.7% |
The mean and standard deviation (SD) summarize the relative deviation from the target delivery of individual boluses (bolus delivery) and nonoverlapping 1-hour windows (basal rate delivery) over all tested disposables.
a
The accuracy limits given by the manufacturer for bolus delivery are ±5% for bolus volumes ≥1 U and ±0.05 U for volumes <1 U. The accuracy limits for basal rate delivery are ±5% for basal rates ≥0.05 U/h. 6