Evaluating the Need for Pre-CoMiSS™, a Parent-Specific Cow's Milk-Related Symptom Score: A Qualitative Study

Background/Objectives: Cow's milk allergy (CMA) presents a significant clinical burden. The Cow's Milk-related Symptom Score (CoMiSS™) is a widely used clinical screening tool designed to raise awareness of CMA among healthcare professionals. This qualitative study aimed to assess the need for a parent-reported CoMiSS™ tool (Pre-CoMiSS™) and explore its potential usefulness for parents and primary care physicians (PCPs). Methods: Participants were parents of infants aged 2-12 months and PCPs from Germany, Sweden, Spain, and the United Kingdom (UK) selected from a local panel of potential respondents. Interviews, conducted by experienced qualitative research moderators, consisted of pre-decided standardised questions. Thematic analysis was undertaken, and themes were derived from the data. Results: A total of 26 parent interviews and 18 primary care physician interviews were conducted. Parents from all countries found the Pre-CoMiSS™ tool helpful for understanding their baby's signs, easy to use, and useful for facilitating consultation with the physician. Physicians in the UK, Spain, and Sweden found that the Pre-CoMiSS™ tool was helpful for improving symptom reporting and for medical consultations; however, in Germany, physicians had mixed opinions, expressing concerns that the tool might increase parental anxiety, lead to overdiagnosis of CMA, and add to their workload. Conclusions: A parent-specific tool for recording cow's milk-related symptoms was generally well received by parents and most physicians, though concerns about parental anxiety and workload were noted, particularly in Germany. With further validation and refinement, Pre-CoMiSS™ may be a useful tool for parents to record their infant's symptoms related to feeding and support PCPs in considering CMA in these infants.