The Massachusetts BMI letter: A qualitative study of responses from parents of obese children

Abstract

ObjectivesMassachusetts (MA) public schools conduct mandated body-mass index (BMI) screening and until recently, communicated results in a letter to parents/caregivers, to encourage primary care visits and provide aggregate data to the state Department of Public Health. This study assessed the letter's readability and qualitatively explored parents’ responses to it. MethodsReadability of the BMI letter was calculated. Audio-taped 1-h focus groups were conducted with parents/caregivers of 8- to 14-year-old obese (≥95th BMI-for-age percentile) children. A semi-structured interview guide was used to elicit responses. Qualitative content analysis was conducted on transcripts to identify emergent themes. ResultsReadability analysis showed higher grade levels than recommended. Eight focus groups consisting of two to six parents each were conducted (n=29); 83% were female, mean age 41±9years, and 65% self-identified as Hispanic/Latino. Key themes identified included usefulness of the BMI letter, concerns about utility of BMI for screening, concerns about impacting self-esteem, and failure to understand the letter. ConclusionsThe MA BMI letter may not have been achieving its desired goal with some parents. Practice implicationsEmergent themes from this study could be used to test effectiveness of similar BMI letters nationwide and develop strategies to improve communication to parents.