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Comment
. 2009 Mar;59(560):209-10; author reply 210-1.
doi: 10.3399/bjgp09X419574.

Usual care in back pain trials

Robert Froud, Martin Underwood
Comment

Usual care in back pain trials

Robert Froud et al. Br J Gen Pract. 2009 Mar.
No abstract available

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Figures

None
For ease of viewing, confidence intervals (CIs) have been omitted around point estimates from Meng and Licciardone's trials. Meng et al reported that the mean score of the 24 patients in the usual care group in their trial at baseline was 11.8 with a SD of 5.3; from this, the 95% CI at baseline can be calculated to be 9.64 to 13.96. However, data necessary to calculate CIs for follow-up time points were not available. The follow-up score of 10.5 at week two has been estimated from a graph in the original report; it was not reported textually. In Licciardone's trial, the 95% CI around the baseline score of 7.3 is 4.95 to 9.65, around the 4 week follow-up score of 6.94 the 95% CI is 4.58 to 9.3, around the 12 week follow-up score of 5.94 the 95% CI is 2.86 to 9.02, and around the 24 week follow-up score of 6.2 the 95% CI is 2.86 to 9.53.
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Comment on

References

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