Equal equipment availability doesn't mean equal access — and for women in economically disadvantaged neighborhoods, the difference may show up most acutely in when they can actually schedule a mammogram. This study reveals a structural scheduling inequity in breast cancer screening that raw availability statistics would entirely obscure.
Analyzing 220 FDA-accredited breast imaging facilities stratified by the Area Deprivation Index — a composite zip code-level measure of socioeconomic disadvantage — researchers found that digital breast tomosynthesis (DBT), the 3D mammography technology that detects more cancers and reduces false positives compared to conventional 2D imaging, was available at over 91% of sampled facilities regardless of neighborhood deprivation level. Median out-of-pocket fees of $250 were also comparable across high- and low-deprivation zip codes. The critical divergence emerged in scheduling flexibility: facilities in low-deprivation areas offered weekend appointments at more than double the rate of those in high-deprivation areas (50% versus 23.1%, p<0.001). Low-deprivation facilities also more frequently provided DBT educational resources and related informational services.
This finding deserves careful interpretation. The absence of a gap in hardware availability is genuinely encouraging — it suggests prior investment in DBT diffusion has reached underserved communities. But availability of a machine during business hours is not the same as accessible care for hourly workers, single parents, or individuals without paid leave. Weekend scheduling flexibility is precisely the kind of structural accommodation that determines whether a screening appointment translates into an actual visit. Research consistently shows that screening non-adherence in lower-income populations correlates strongly with logistical barriers rather than health literacy or motivation. This study's cross-sectional design limits causal inference, and facility-reported data carries response bias risk. Still, the finding is practically significant: policymakers and health systems aiming to close breast cancer mortality disparities may need to focus less on equipment procurement and more on expanding scheduling access during non-traditional hours.