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Table 2 Cox regression estimates of the effect of echinacea and osteopathic manipulative treatment on the risk of AOM after adjustment for other factors

From: Echinacea purpurea and osteopathic manipulative treatment in children with recurrent otitis media: a randomized controlled trial

  Relative Risk 95% Confidence  
Variable   Interval P-value
Echinacea treatment 1.73 0.94, 3.18 0.08
Osteopathic manipulative treatment 0.84 0.44, 1.61 0.60
Age (y) 0.49 0.26, 0.89 0.02
Male gender 2.15 1.09, 4.21 0.03
Hispanic ethnicity 2.02 1.10, 3.72 0.02
Siblings in home (1 or more vs. none) 1.96 0.99, 3.89 0.05