Table 3.

Prediction models for long‐term (>5 year) scar quality

Variable	Mean POSAS* score						Overall opinion
	Univariate regression			Multivariate regression†			Univariate regression			Multivariate regression⊥
	Regression coefficient	SE	p‐value	Regression coefficient	SE	p‐value	Regression coefficient	SE	p‐value	Regression coefficient	SE	p‐value
Male gender	−0.34	0.26	0.189				−0.66	0.23	0.004	−0.68	0.23	0.003
Age at injury	−0.11	0.13	0.395				−0.03	0.11	0.811
%TBSA	0.63	0.12	<0.001				0.36	0.11	0.002
%TBSA full thickness	0.65	0.12	<0.001				0.41	0.12	<0.001
Length of hospital stay	0.79	0.12	<0.001	0.79	0.12	<0.001	0.40	0.12	0.001	0.40	0.12	<0.001
Number of surgeries	0.73	0.12	<0.001				0.43	0.11	<0.001
Reconstructive surgery	0.43	0.12	<0.001				0.13	0.10	0.188
Artificial ventilation	0.43	0.12	<0.001				0.26	0.11	0.019
Facial burn	−0.57	0.48	0.236				0.44	0.39	0.257
Hand burn	0.33	0.35	0.336				0.18	0.29	0.549
Flame burns	0.24	0.26	0.361				0.02	0.22	0.938
Scalds	−0.14	0.32	0.671				−0.16	0.29	0.578
Time since burn	0.20	0.13	0.124				0.21	0.11	0.064

^* POSAS, the patient part of the Patient and Observer Scar Assessment Scale.

^† Explained variance: 15.8%.

^⊥ Explained variance: 9.4%.