Table 1.

Demographics of responding centres

Specialty	PID	AI
No. of Countries Responded	15	13
No. patients treated in service
- < 50 -50–100 -100–200 -200–500 - > 500 -Unknown	8 8 8 13 5 1	13 9 8 2 0 0
No. transition aged patients treated in service
- < 50 -50–100 -100–200 - > 200 -Unknown	22 13 3 5 1	22 9 0 0 0
No patients transferred to adult services each year
- < 5 -5–10 -10–20 -20–40 -Unknown	17 15 8 2 2	17 12 2 0 1