Comment on “Global, regional, and national burden of appendicitis among children and adolescents from 1990 to 2021 and projection to 2040: a cross-sectional study”

To the Editor, Huang et al provide a timely assessment of appendicitis burden in children and adolescents (0–19 years) using GBD 2021 data (1990–2021) with projections to 2040[1]. Their key message – high incidence in high-SDI settings but disproportionately higher mortality in low-SDI regions – echoes broader GBD evidence that emergency surgical conditions remain strongly shaped by health-system access and timeliness of care[2]. For pediatric surgeons, the projected >20% increase in incidence by 2040 is particularly consequential, signaling sustained growth in emergency operative demand even if overall mortality continues to decline[1]. This work conforms to the TITAN 2025 guideline on transparency and accountability in reporting[3]. Methodologically, the authors strengthen confidence by combining Joinpoint trend analysis, decomposition of drivers (population growth vs epidemiologic change), and Bayesian age–period–cohort forecasting (INLA/BAPC)[1]. The “frontier” analysis is also useful, reframing performance beyond wealth alone and highlighting countries that achieve better-than-expected outcomes given resource constraints[1]. Several aspects merit further consideration to maximize surgical relevance. First, GBD modeling is vulnerable to underdiagnosis and misclassification in low-resource settings, which may artifactually depress incidence while inflating lethality. This matters because pediatric appendicitis outcomes are tightly linked to diagnostic delay and access to timely evaluation; population studies show preventable delays and substantial variation in timeliness across care settings[4]. Second, the inability to distinguish complicated (perforated) from uncomplicated appendicitis limits actionable interpretation for workforce and infrastructure planning. Perforation is a key determinant of postoperative morbidity, resource utilization, and the need for pediatric anesthesia, imaging, and interventional radiology; perforation rates are also known to reflect inequities in access and prehospital care[5]. Third, the post-2015 incidence inflection and future projections would be even more informative if interpreted alongside evolving management paradigms, including the growing (but still debated) role of non-operative management for uncomplicated appendicitis in children. Recent randomized evidence indicates that antibiotics can avoid surgery in some patients but with higher cumulative failure compared with appendicectomy, underscoring that rising incidence may not automatically translate to rising operations unless pathways and recurrence patterns are incorporated[6]. Overall, Huang et al offer an important global map of pediatric appendicitis burden and inequality[1]. Next steps should link burden estimates with granular surgical-capacity indicators (time-to-theater, imaging availability, pediatric anesthesia coverage, and laparoscopy access) and stratify uncomplicated versus perforated disease to better inform national planning and reduce preventable deaths.