Environmental Trigger(s) of Type 1 Diabetes: Why So Difficult to Identify?

Table 3

HLA typing and time points for follow-up in DiPiS.

(a) Eligible HLA types	DQB1^*02/DQB1^*0302
	DQB1^*0302/X (X # DQB1^*02, 0301, 0602/0603)
(b) Time points for blood samples	Autoantibodies are measured in every second year
(c) Questionnaires	Filled just after the children were born, gestational and perinatal health
(d) Stool samples	Not asked for