Doses of insulin delivered by two pen-injector devices and 30 U insulin syringes
| Intended dose | Mean (SD) delivered dose (U) (range) | ||
|---|---|---|---|
| NovoPen | BD-Pen | 30 U syringe | |
| 1 U | 0.89 (0.04) | 0.92 (0.03) | 1.23 (0.09)1-150 |
| (0.85–0.95) | (0.87–0.95) | (1.16–1.37) | |
| 2 U | 1.90 (0.03) | 1.90 (0.05) | 2.24 (0.09)1-150 |
| (1.85–1.93) | (1.82–1.94) | (2.15–2.35) | |
| 5 U | 4.87 (0.03) | 4.87 (0.07) | 5.18 (0.06)1-150 |
| (4.84–4.91) | (4.77–4.94) | (5.10–5.26) | |
| 10 U | 9.80 (0.09) | 9.86 (0.09) | 10.07 (0.07)1-150 |
| (9.72–9.94) | (9.73–9.96) | (9.97–10.14) | |
↵1-150 At all intended doses, 30 U syringes delivered significantly higher doses than the pen-injector devices (p < 0.01).