Body image in head and neck cancer patients treated with radiotherapy: the impact of surgical procedures

Table 4 Multiple linear regression models for the BIS

Multiple linear regression model^a for all patients (n = 150)
	Reduced model
	Estimate	p	95% CI
	Estimate	p	Lower	Upper
Intercept	6.15	<0.001	4.22	8.08
Radical surgery (ref: no surgery)	6.88	<0.001	4.60	9.15
University and above (ref: primary school)	- 3.63	0.009	- 6.36	- 0.91
Multiple linear regression model^b for the surgically treated patients (n = 90)
	Reduced model
	Estimate	p	95% CI
	Estimate	p	Lower	Upper
Intercept	11.46	<0.001	9.03	13.89
Partial glossectomy (ref: other surgery^c)	- 4.45	0.014	- 7.99	- 0.91
Segmental (ref: no mandibulectomy)	3.92	0.020	0.63	7.21
Maxillectomy (ref: no maxillectomy)	4.13	0.023	0.57	7.69

Abbreviations: BIS Body image scale; Segmental, segmental mandibulectomy; Maxillectomy, inferior maxillectomy
^aExcluded variables: age, gender, partnered, employment.; R² = 0.26, adjusted R² = 0.25
^bExcluded variables: age, gender, partnered, education, employment, facial skin sacrificed, mouth angle sacrificed.; R² = 0.23, adjusted R² = 0.20
^cOther surgery: wide local excision of buccal/gingival/retromolar tumors

ISSN: 1477-7525