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Table 5 Effect of the intervention on men’s decisions and actual screening rates

From: Shared decision making for prostate cancer screening: the results of a combined analysis of two practice-based randomized controlled trials

  Control, % (n) Intervention, % (n) Unadjusted Absolute Difference * Unadjusted RR Adjusted RR Adjusted RR Adjusted RR
(n = 70) (n = 58) (95% CI)   (95% CI) † (95% CI) ‡ (95% CI) §
Intent for Screening Post Intervention 79% (55) 45% (26) −34% (−50% to −18%) 0.57 (0.42 to 0.78) 0.46 (0.34 to 0.73) 0.57 (0.35 to 0.81) 0.18 ( 0.06 to 0.48)
Patient reported screening after clinical visit 31% (16) 11% (4) −21% (−38% to −4%) 0.44 (0.17 to 1.08) 0.27 (0.12 to ∞) 0.43 (0.16 to 0.96) 0.42 (0.14 to 1.24)
Actual Screening at 9 months 41% (29) 19% (11) −22% (−38 to −7%) 0.45 (0.25 to 0.83) 0.43 (0.26 to 1.41) 0.42 (0.20 to 0.81) 0.76 (0.50 to 0.97)**
  1. * Pearson’s chi-square tests.
  2. †Adjusted for random effects of physician.
  3. ‡Adjusted for random effects of physician and practice.
  4. §Adjusted for random effects of physician and practice and for family history of prostate cancer, history of PSA testing, receipt of physician recommendation for testing, current plans for PSA testing, and patient approach to discussing PSA testing at next visit (as applicable after stepwise regression).
  5. Adjusted only for plans for PSA testing; other covariates dropped out of model.
  6. ** Adjusted only for History of PSA test; other other covariates dropped out of model.