Table 3.

Association between participation in follow-up screening and diabetes diagnosis

	Crude OR (95% CI)	Adjusted* OR (95% CI)
General practitioner
Control 1: Within 3 months after birth	2.4(1.3-4.3)	2.4 (1.3-4.4)
Control 2: 3 months to 2 years	8.6 (5.1-14.7)	8.3 (4.8-14.1)
Control 3: 2 years to 4 years	10.1 (6.5-15.7)	9.8 (6.2-15.3)
Control 4: 4 years to 6 years	11.9 (7.9-18.0)	11.8 (7.7-18.0)
Biochemical unit**
Control 1: Within 6 months after birth	1.4 (0.4-4.9)	0.9 (0.2-4.1)
Control 2: 6 months to 2.4 years	2.4 (0.7-8.2)	1.5 (0.3-6.9)
Control 3: 2.4 years to 4.5 years	4.3 (0.9-19.2)	1.7 (0.2-14)
Control 4: 4.5 years to 8.2 years***	-	-

Women with onset of new pregnancy/birth or occurrence of death were excluded from the analysis.

*Adjusted for income, age and ethnicity.

**Data on blood samples are only available for women giving birth after 2006.

***To few events.