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Table 2 Estimated odds ratios for crude participation rates for cancer patients in HUNT surveys: unadjusted and adjusted odds ratios for all persons with vs. without previous cancer diagnosis (reference), plus corresponding predicted relative risk (for easier interpretation of the adjusted odds ratios)*

From: Cancer patients’ participation in population-based health surveys: findings from the HUNT studies

 

Odds ratio*

Predicted relative risk**

No cancer (reference)

Cancer

Cancer

Unadjusted

Adjusted for sex

and age***

 

HUNT1

1.0

0.96 {0.83, 1.11}

0.80 {0.68, 0.92}

0.98

HUNT2

1.0

0.98 {0.90, 1.05}

0.87 {0.80, 0.95}

0.96

HUNT3

1.0

1.15 {1.09, 1.23}

0.96 {0.90, 1.03}

0.98

  1. * With overall high participation rates, odd ratios must be interpreted with caution, and they are not good approximations of relative risks. Therefore use of predicted relative risks for easier interpretation
  2. ** Relative risks given as the difference between the observed attendance in the cancer diagnosis group and the estimated attendance for the same group under the counterfactual assumption of no earlier cancer diagnosis (using multivariate logistic regression adjusting for sex and age). See “Methods” section for details
  3. *** Age and age^2 (quadratic)
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BMC Research Notes

ISSN: 1756-0500

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