
6 months

12 months

18 months


Fused in both patients of the matched pair (n)

14

28

33

Fused in neither patient of the matched pair (n)

17

6

4

Fused only in the case of the matched pair (n)

13

9

6

Fused only in the control of the matched pair (n)

5

6

6

Odds Ratio

2.6

1.5

1.0

95% CI of the OR

0.97 – 7.00

0.56 – 4.04

0.34 – 2.94

pvalue

0.064

0.454

>0.999

 Note that the numbers (n) reported in the first four rows of the table are the number of pairs of matched patients (case + control), not of individual patients. Note also that the first two rows of the table, reporting concordant fusion status results in both patients of the matched pair, although perhaps clinically interesting, have little to no statistical relevance for comparing the two study groups. What is important instead, are the third and fourth rows, reporting discordant results of the fusion status, and the subsequent rows of statistical calculations