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Table 4 Estimated odds ratios for lower joint effusion grade between time points and differences in radiography grade at baseline and associated 95% confidence intervals

From: An international multi-centre prospective study on the efficacy of an intraarticular polyacrylamide hydrogel in horses with osteoarthritis: a 24 months follow-up

Odds ratio

Estimate

95% confidence limits

Month 1 vs Baseline

13.21

5.14

33.96

Month 3 vs Baseline

38.18

11.72

124.40

Month 6 vs Baseline

106.14

32.31

348.61

Month 12 vs Baseline

91.52

28.19

297.07

Month 24 vs Baseline

171.80

46.35

636.76

Radiography grade −1

3.12

1.90

5.13

  1. OR for lower joint effusion grade from month 1 to month 24 relative to baseline increased from 13 (95% CI = 5–34) to 172 (95% CI = 46–637). OR for lower joint effusion grade was 3.1 (95% CI = 1.9-5.1) when radiographic grade at baseline was low by one grade.
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Acta Veterinaria Scandinavica

ISSN: 1751-0147