Table III.

Odds ratio and 95% confidence limits.

Effect on HONcode status	Odds ratio	95% confidence interval	p-value*
Search term
Arthritis	1.00 (referent)	N/A	N/A
Osteoarthritis	1.310	0.975 to 1.759	0.073
End-stage arthritis	0.534	0.376 to 0.758	< 0.001
Bone on bone arthritis	0.988	0.726 to 1.344	0.937
Total joint arthroplasty	0.696	0.501 to 0.968	0.031
Total joint replacement	0.809	0.588 to 1.114	0.194
Total hip arthroplasty	0.707	0.509 to 0.982	0.039
Total hip replacement	0.576	0.408 to 0.813	0.002
Total knee arthroplasty	0.786	0.570 to 1.084	0.142
Total knee replacement	0.696	0.501 to 0.968	0.031
Anterior hip replacement	0.292	0.192 to 0.443	< 0.001
Posterior hip replacement	0.431	0.297 to 0.624	< 0.001
Half knee replacement	0.451	0.313 to 0.650	< 0.001
Unicompartmental knee replacement	0.351	0.236 to 0.520	< 0.001
Mako knee	0.123	0.070 to 0.220	< 0.001
Oxford knee replacement	0.263	0.171 to 0.406	< 0.001
Total hip replacement recovery time	0.752	0.543 to 1.040	0.085
Total knee replacement recovery time	0.763	0.553 to 1.055	0.102
Tertile
first tertile (0 to 50)	1.00 (referent)	N/A	N/A
second tertile (51 to 100)	0.320	0.276 to 0.370	< 0.001
third tertile (101 to 150)	0.144	0.119 to 0.175	< 0.001
Language
English	1.00 (referent)	N/A	N/A
French	1.201	1.009 to 1.428	0.039
German	1.123	0.942 to 1.338	0.195
Spanish	1.119	0.939 to 1.333	0.211

^*Logistic regression, where < 0.05 indicates likelihood of HON accreditation by search term, tertile, or language to be found in comparison to the reference.