Golden Code Strategy: A Retrospective Study Evaluating the Implementation of a Direct Referral Pathway in Children and Adolescents With Suspected Cancer in a Middle-Income Country.
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IntroductionIn Mexico, delays in pediatric cancer diagnosis remain a major barrier to timely care and are partly driven by inefficiencies in referral pathways. This study aimed to evaluate the impact of a direct pathway on referral intervals for patients with suspected childhood cancer treated at a high-specialty hospital in Mexico.MethodsWe conducted a retrospective observational cohort study based on a comprehensive review of medical records of patients referred to a high-specialty hospital in Mexico between 2017 and 2022. Patients' characteristics, along with dates from symptom recognition to diagnosis, were collected. The exposure was the referral pathway: standard versus direct (Golden Code strategy) pathway, which enables access to pediatric oncology through a zero-rejection policy. The primary outcome was the time attributable to oncological referral (TAOR), analyzed as a continuous variable and a dichotomous outcome. Secondary intervals were calculated using standardized definitions. Regression models were used to evaluate factors associated with untimely (>7 days) referral.ResultsA total of 399 patients were included. The direct pathway was associated with a shorter TAOR compared to the standard pathway (median 2.0 vs. 7.0 days; p<0.001). The proportion of timely referrals was substantially higher in the direct pathway (91.3%) than in the standard (50.6%) and reduced the likelihood of an untimely referral (OR = 0.098, 95% CI: 0.055-0.173; p<0.001). No differences were observed in other diagnostic intervals.ConclusionThe direct referral pathway improves the timeliness and consistency of access to pediatric oncology care by reducing referral delays and increasing the proportion of patients evaluated within recommended referral intervals. However, the absence of changes in the secondary intervals, such as time to oncological diagnosis, highlights the need for complementary actions targeting downstream diagnostic processes. Strengthening referral systems represents a feasible and impactful strategy to address delays in pediatric cancer care in middle-income settings.