|
Operative treatment in the UK Hip trial |
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| 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 Mantel-Haenszel test. | ||||||
White and Elbourne BMC Medical Research Methodology 2005 5:15 doi:10.1186/1471-2288-5-15 |
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