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Table 1 Operative treatment in the UK Hip trial

From: Assessing subgroup effects with binary data: can the use of different effect measures lead to different conclusions?

Level of clinical suspicion Ultrasound No Ultrasound Risk ratio for harm (95% CI) Risk ratio for benefit (95% CI) Odds ratio (95% CI) Risk difference (95% CI)
All 21/314 (7%) 25/315 (8%) 0.84 (0.48 to 1.47) 1.01 (0.97 to 1.06) 0.83 (0.46 to 1.52) -0.01 (-0.05 to 0.03)
Strong 7/95 (7%) 11/89 (12%) 0.60 (0.24 to 1.47) 1.06 (0.96 to 1.16) 0.56 (0.21 to 1.53) -0.05 (-0.14 to 0.04)
Moderate 14/219 (6%) 14/226 (6%) 1.03 (0.50 to 2.11) 1.00 (0.95 to 1.05) 1.03 (0.48 to 2.22) 0.00 (-0.04 to 0.05)
Test of
interaction1
   P = 0.35 P = 0.29 P = 0.34 P = 0.30
  1. 1 Mantel-Haenszel test.