Real-world evidence was feasible for estimating effectiveness of chemotherapy in breast cancer; a cohort study

Evidence-based guidelines recommend adjuvant chemotherapy in early stage breast cancer whenever treatment benefit is considered sufficient to outweigh the associated risks. However, many groups of patients were either excluded from or underrepresented in the clinical trials that form the evidence base for this recommendation. This study aims to determine whether using administrative healthcare data – Real World Data (RWD) - and econometric methods for causal analysis to provide 'Real World Evidence' (RWE) are feasible methods for addressing this gap.

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