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Table 2 Any hip 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

126/314 (40%)

159/315 (50%)

0.79 (0.67 to 0.95)

1.21 (1.05 to 1.40)

0.66 (0.48 to 0.90)

-0.10 (-0.18 to -0.03)

Strong

65/95 (68%)

86/89 (97%)

0.71 (0.61 to 0.82)

9.37 (2.96 to 29.62)

0.08 (0.02 to 0.24)

-0.28 (-0.38 to -0.18)

Moderate

61/219 (28%)

73/226 (32%)

0.86 (0.65 to 1.15)

1.07 (0.94 to 1.20)

0.81 (0.54 to 1.21)

-0.04 (-0.13 to 0.04)

Test of

interaction1

  

P = 0.14

P < 0.001

P < 0.001

P < 0.001

  1. 1 Mantel-Haenszel test.