Self-care autonomy and outcomes of intensive therapy or usual care in youth with type 1 diabetes

Abstract

Objective: This article evaluated whether deviation from developmentally appropriate self-care autonomy moderated the effects of intensive therapy (IT) or usual care (UC) on glycosylated hemoglobin (HbA1C) in 142 youths with diabetes. Methods: Youths received an autonomy/maturity ratio (AMR) score at baseline that was a ratio of standardized scores on measures of self-care autonomy to standardized scores on measures of psychological maturity and were categorized by tertile split into low, moderate, and high AMR. Results: Higher baseline AMR was associated with higher baseline HbA1C for IT and UC. Baseline AMR scores predicted glycemic outcomes from UC; the high AMR tertile showed deteriorating glycemic control over time, whereas the low AMR tertile maintained better glycemic control. All three AMR groups derived equal glycemic benefit from IT. Conclusion: Children with inordinate diabetes self-care autonomy may fare poorly in UC but these same children may realize less glycemic deterioration during IT. © The Author 2005. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved.