Table 3: Crosstab of patients with or without workload exposure during the year before surgery.

Workload Exposure
During the Year Before Surgery
Chondrocyte Clusters
No Clusters (Single Chondrocytes) Single Chondrocyte Clusters (> 5 Clusters) Numerous Chondrocyte Clusters
yes 3 (10.7%) 12 (42.9%) 13 (46.4%)
no 12 (19.7%) 36 (59.0%) 13 (21.3%)

The crosstab shows the number and percentage (% of the row) of patients with and without workload exposure during the year before surgery. Patients without workload (n = 61) had less chondrocyte cluster formation than patients with a high workload (n = 28); p = 0.055 Chi-Square Likelihood quotient.