In the article on colorectal cancer screening adherence in a general population in the April 2004 issue of Cancer Epidemiology, Biomarkers & Prevention (1), it was discovered that programming errors were made during the reweighting processes. Although this led to minor errors in the point estimates of screening rates, it did lead to substantially incorrect estimates of the 95% confidence intervals, which were inappropriately small in span and mislocated. Table 1 shows the original and corrected estimates.

Table 1.

Self-reported colorectal cancer screening test adherence by age and sex, Minnesota, 2000

TestOriginally reported
Corrected
Estimate95% Confidence intervalEstimate95% Confidence interval
Total Fecal occult blood test 0.245 0.234–0.271 0.218 0.189–0.248 
 Flexible sigmoidoscopy 0.338 0.330–0.358 0.332 0.298–0.366 
 Colonoscopy 0.293 0.283–0.314 0.277 0.245–0.308 
 Barium enema 0.137 0.127–0.163 0.144 0.119–0.169 
 Overall 0.553 0.545–0.571 0.548 0.507–0.586 
Age <65 y Fecal occult blood test 0.218 0.200–0.264 0.177 0.144–0.212 
 Flexible sigmoidoscopy 0.293 0.278–0.328 0.296 0.257–0.337 
 Colonoscopy 0.227 0.212–0.266 0.218 0.182–0.256 
 Barium enema 0.096 0.079–0.143 0.097 0.070–0.127 
 Overall 0.487 0.473–0.519 0.498 0.454–0.541 
Age 65+ y Fecal occult blood test 0.284 0.277–0.289 0.271 0.222–0.322 
 Flexible sigmoidoscopy 0.402 0.398–0.406 0.379 0.320–0.435 
 Colonoscopy 0.386 0.381–0.391 0.352 0.297–0.406 
 Barium enema 0.195 0.190–0.197 0.204 0.157–0.251 
 Overall 0.648 0.644–0.652 0.614 0.539–0.676 
Men Fecal occult blood test 0.230 0.219–0.241 0.209 0.168–0.250 
 Flexible sigmoidoscopy 0.319 0.304–0.334 0.342 0.292–0.392 
 Colonoscopy 0.272 0.267–0.277 0.264 0.218–0.307 
 Barium enema 0.117 0.114–0.121 0.142 0.108–0.179 
 Overall 0.526 0.519–0.533 0.537 0.472–0.592 
Women Fecal occult blood test 0.258 0.239–0.306 0.227 0.186–0.271 
 Flexible sigmoidoscopy 0.354 0.339–0.389 0.323 0.280–0.369 
 Colonoscopy 0.310 0.295–0.348 0.290 0.246–0.335 
 Barium enema 0.154 0.136–0.201 0.146 0.110–0.184 
 Overall 0.577 0.564–0.607 0.559 0.511–0.606 
TestOriginally reported
Corrected
Estimate95% Confidence intervalEstimate95% Confidence interval
Total Fecal occult blood test 0.245 0.234–0.271 0.218 0.189–0.248 
 Flexible sigmoidoscopy 0.338 0.330–0.358 0.332 0.298–0.366 
 Colonoscopy 0.293 0.283–0.314 0.277 0.245–0.308 
 Barium enema 0.137 0.127–0.163 0.144 0.119–0.169 
 Overall 0.553 0.545–0.571 0.548 0.507–0.586 
Age <65 y Fecal occult blood test 0.218 0.200–0.264 0.177 0.144–0.212 
 Flexible sigmoidoscopy 0.293 0.278–0.328 0.296 0.257–0.337 
 Colonoscopy 0.227 0.212–0.266 0.218 0.182–0.256 
 Barium enema 0.096 0.079–0.143 0.097 0.070–0.127 
 Overall 0.487 0.473–0.519 0.498 0.454–0.541 
Age 65+ y Fecal occult blood test 0.284 0.277–0.289 0.271 0.222–0.322 
 Flexible sigmoidoscopy 0.402 0.398–0.406 0.379 0.320–0.435 
 Colonoscopy 0.386 0.381–0.391 0.352 0.297–0.406 
 Barium enema 0.195 0.190–0.197 0.204 0.157–0.251 
 Overall 0.648 0.644–0.652 0.614 0.539–0.676 
Men Fecal occult blood test 0.230 0.219–0.241 0.209 0.168–0.250 
 Flexible sigmoidoscopy 0.319 0.304–0.334 0.342 0.292–0.392 
 Colonoscopy 0.272 0.267–0.277 0.264 0.218–0.307 
 Barium enema 0.117 0.114–0.121 0.142 0.108–0.179 
 Overall 0.526 0.519–0.533 0.537 0.472–0.592 
Women Fecal occult blood test 0.258 0.239–0.306 0.227 0.186–0.271 
 Flexible sigmoidoscopy 0.354 0.339–0.389 0.323 0.280–0.369 
 Colonoscopy 0.310 0.295–0.348 0.290 0.246–0.335 
 Barium enema 0.154 0.136–0.201 0.146 0.110–0.184 
 Overall 0.577 0.564–0.607 0.559 0.511–0.606 

NOTE: Corrected analysis uses the data set current as of April 8, 2004.

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1
Yeazel MW, Church TR, Jones RM, et al. Colorectal cancer screening adherence in a general population.
Cancer Epidemiol Biomarkers Prev
 
2004
;
13
:
654
–7.
View Original Article
American Association for Cancer Research
2004