Diabetic treatment in the first trimester by centre
| Centre | Birth year | Human insulin only, N=870 | Insulin analogue only, N=397 | Human insulin and insulin analogue, N=394 | |||
| n | % | n | % | n | % | ||
| Funen (N=206) | 2000–2011 | 150 | 72.8 | 13 | 6.3 | 43 | 20.9 |
| Northern Netherlands (N=270) | 1999–2012 | 63 | 23.3 | 145 | 53.7 | 62 | 23.0 |
| Malta (N=132) | 1999–2011 | 127 | 96.2 | 5 | 3.8 | 0 | 0 |
| Antwerp (N=99) | 1997–2011 | 31 | 31.3 | 39 | 39.4 | 29 | 29.3 |
| Mainz (N=204) | 1996–2012 | 154 | 75.5 | 32 | 15.7 | 18 | 8.8 |
| Wales (N=146) | 1996–2012 | 54 | 37.0 | 87 | 59.6 | 5 | 3.4 |
| Poznan (N=606) | 1999–2012 | 292 | 48.2 | 77 | 12.7 | 237 | 39.1 |