(HealthDay News) — Following the COVID-19 national emergency declaration March 13, 2020, mammography and colonoscopy rates declined by more than 90% among commercially insured American adults, according to a report published online in the Journal of General Internal Medicine.

Ryan K. McBain, PhD, from the RAND Corporation in Boston, and colleagues examined mammography and colonoscopy rates among commercially insured US adults (aged 46 to 64 years) before and after the declaration of the COVID-19 public health emergency (Jan. 15 to July 31, 2020). The authors also sought to identify county-level characteristics predictive of screening rates.

The researchers found that prior to the national emergency declaration, the median weekly rate of screening mammography was 87.8 women per 10,000 beneficiaries, which declined to 6.9 in April (a 96% decline) but rebounded by the end of July to 88.2 screenings per 10,000 beneficiaries. Similarly, colonoscopy screenings declined from 15.1 per 10,000 beneficiaries to 0.9 (a 95% decline) and rebounded to 12.6 per 10,000 beneficiaries during the same time period. A sharper decline in highest-income quartile counties was seen for colonoscopy screenings compared with the lowest-income quartile counties, but there were no significant demographic differences noted for mammography screening rates.

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“Despite an even larger spike in COVID case rates during summer months, cancer screening rates continued to rebound to pre-COVID levels — suggesting that health systems were able to recalibrate resources and protocols in a relatively short interval,” the authors write.

One author disclosed financial ties to the pharmaceutical industry.

Abstract/Full Text