Agreement of secondary hyperalgesia areas in the heat/capsaicin (left part of table), brief thermal sensitization (BTS [middle part of table]) and the burn injury (right part of model) model, at Measurement1 (rows) and Measurement 2 (columns).

Data indicate the distribution of observations split into quartiles (75%) giving a 4×4 contingency table (total number of observations for each quartile are indicated in lower row [Measurement 2] and right-hand column [Measurement 1]). The numbers in the lower right-hand corner, in each panel, are the total number of observations. The numbers in bold indicate completely agreement between observations: Measurement 1 and Measurement 2. Perfect agreement for the heat/capsaicin (A), brief thermal stimulation (B) and the burn injury (C) models were seen in 51%, 54% and 49% of the observations, respectively. The weighted Cohen’s kappa statistics were 0.66 (95% CI: 0.57–0.74) for the heat/capsaicin model, 0.74 (0.65–0.82) for the brief thermal stimulation and 0.74 (0.65–0.82) for the burn injury model.