Cow's Milk-related Symptom Score for cow's milk allergy assessment: a meta-analysis for test accuracy

We aimed to assess the ability of Cow's Milk-related Symptom Score (CoMiss) in screening cow's milk protein allergy (CMPA) and assess validation of its sensitivity and specificity.

We searched the PubMed, WOS, Embase, and Ovid databases using broad terms and keywords for the concepts of the symptom-based score (CoMiss) and cow's milk allergy. We performed the meta-analyses using a meta-package of R software and Meta-DiSc software.

Fourteen studies were included with a total of 1238 children. At cut-off value 12, CoMiss had a pooled sensitivity of 0.64 and a pooled specificity of 0.75. The PLR and NLR were 3.05 and 0.5, respectively. The AUC value of the sROC curve was 0.7866. CoMiss showed a significant difference in CMPA patients at baseline and after milk elimination for 2-4 weeks (MD, 7.18), as well as between the CMPA-positive group compared with the CMPA-negative group, however, the statistical significancy was obtained after leave study of Selbuz et al. out of the analysis (MD, 4.61).

CoMiss may be a promising symptom score in the Awareness of the symptoms related to cow's milk allergy and a useful tool in monitoring the response to a cow's milk-free diet.

Cow's milk protein allergy (CMPA) is the most frequent food allergy in children under the age of 3 years. Cow's Milk-related Symptom Score (CoMiss) is a clinical scoring system to assist primary healthcare providers in early detection of CMPA We performed a meta-analysis of CoMiss test accuracy. Our findings reflect that CoMiss may be a promising symptom score in CMPA awareness and a useful tool in monitoring the response to a cow's milk-free diet.