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AbstractAim:This study evaluated the feasibility of insulin pump treatment in adolescent girls with type 1 diabetes mellitus (T1DM) and eating disorders (ED).Methods:Sixty-three girls >10 years old were included in the study. Forty-eight were treated with pump (no-ED-pump group); 15 had ED, of whom eight were treated with pump (ED-pump group), and seven were treated with multiple daily injections (MDI) (ED-MDI group).Results:Girls in the ED-pump group had higher hemoglobin A1c (HbA1c) compared to those in the no-ED-pump group both before and after pump initiation (P= 0.007). In the ED-pump group, levels 0–6 months after pump initiation were slightly but not significantly lower compared to baseline reference values (8.48% vs. 8.84%, respectively; P= 0.42). In the no-ED-pump group there was a significant decrease in HbA1c level 0–6 months after pump initiation (8.03% vs. 7.67%, respectively; P= 0.004). Thereafter HbA1c levels were not different from baseline reference on both groups. The rate of hypoglycemic episodes was similar in the ED pump and no-ED-pump groups (0.9 vs. 1.0 episodes per 100 patient-years, respectively). Prior to diagnosis of ED, mean HbA1c levels in the ED-pump group and the ED-MDI group were similar: 9.24 ± 1.25% versus 8.47 ± 1.30% (P= 0.51). In the time intervals after the diagnosis of ED, mean HbA1c level of all measurements in the eight girls in the ED-pump group was significantly lower compared with the seven patients in the ED-MDI group: 9.07 ± 1.33% versus 10.40 ± 2.01% (P= 0.04).Conclusions:Treatment with an insulin pump was feasible in girls with T1DM and ED and resulted in significantly lower HbA1c levels compared to the ED-MDI group. [ABSTRACT FROM AUTHOR]