1. Design, study quality and evidence of analgesic efficacy in studies of drugs in models of OA pain: a systematic review and a meta-analysis 
A.K. Suokas, D.R. Sagar, P.I. Mapp, V. Chapman, D.A. Walsh 
Osteoarthritis and Cartilage 
Volume 22, Issue 9, Pages (September 2014)
DOI: /j.joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1 Flow diagram of study selection.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

3. Fig. 2
Pooled SMDs and 95% CIs for the analgesic treatment effect of NSAIDs and opioids, by pain modality. Positive increasing SMDs indicate analgesic efficacy. Thermally-evoked pain with only two observations from one study was excluded from the analysis. One study may involve the testing of more than one pain modality and/or drug. Forest plots for each subgroup are presented in Appendix 5.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

4. Fig. 3
Funnel plot for the magnitude of the analgesic treatment effect (n = 102). Test for publication bias: Egger's test = 5.04 (95% CI = 3.72–6.36) P < 
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

5. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

6. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

7. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

8. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

9. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions

10. Osteoarthritis and Cartilage 2014 22, 1207-1223DOI: (10. 1016/j. joca
Copyright © 2014 Osteoarthritis Research Society International Terms and Conditions