TABLE 1.

Interobserver reliability of the observer component of the patient and observer scar assessment scale

Observer component of the POSAS	Single measure ICC (95% CI), OST group	Average measure ICC (95% CI), OST group	Single measure ICC (95% CI), PDT group	Average measure ICC (95% CI), PDT group
Vascularity	0.777 (0.689 ~ 0.845)	0.913 (0.849 ~ 0.943)	0.207 (0.078 ~ 0.350)	0.440 (0.201 ~ 0.618)
Pigmentation	0.525 (0.395 ~ 0.646)	0.76 (0.662 ~ 0.846)	0.380 (0.230 ~ 0.525)	0.647 (0.473 ~ 0.768)
Thickness	0.575 (0.431 ~ 0.696)	0.80 (0.694 ~ 0.873)	0.405 (0.253 ~ 0.550)	0.672 (0.503 ~ 0.786)
Relief	0.777 (0.681 ~ 0.849)	0.91 (0.865 ~ 0.944)	0.541 0.394 ~ 0.668)	0.779 (0.661 ~ 0.858)
Pliability	0.359 (0.219 ~ 0.501)	0.62 (0.456 ~ 0.751)	0.429 (0.275 ~ 0.573)	0.693 (0.532 ~ 0.801)
Surface area	0.856 (0.781 ~ 0.906)	0.947 (0.914 ~ 0.967)	0.453 (0.311 ~ 0.588)	0.713 (0.575 ~ 0.811)
Total	0.702 (0.585 ~ 0.793)	0.876 (0.809 ~ 0.920)	0.472 (0.303 ~ 0.618)	0.728 (0.566 ~ 0.829)

Abbreviations: average measure ICC, intraclass correlation coefficient for the group of three observers; CI, confidence interval; single measure ICC, intraclass correlation coeficient for a single observer.