Table 2.

Factors identified using principal components analysis on full data set: 1—Daily life impact; 2—Mouth problems; 3—Embarrassment; 4—Treatment impact; 5—Loss of smell.

Item	Factors
	1	2	3	4	5
Sleeping disorders	0.520	0.341	0.240	0.311	0.270
A dry throat/mouth	0.570	0.298	0.311	0.090	0.274
Inability to fully carry out sporting activities	0.602	0.378	−0.111	0.159	0.275
Bad breath	0.077	0.731	0.099	0.028	0.067
Difficulty tasting food and wine	0.165	0.124	0.129	−0.008	0.801
Being irritable	0.583	0.511	0.227	0.266	0.061
Being worried about the side effects of medication	0.341	−0.056	0.394	0.656	−0.051
Feeling embarassed socially/in your social life	0.492	0.069	0.656	0.172	0.145
A nasal voice	0.138	0.198	0.720	0.021	0.136
Being worried about the disease	0.558	0.111	0.358	0.446	0.046
Not feeling in control of the disease	0.721	−0.025	0.234	0.257	0.278
Feeling worried that you may not notice personal unpleasant body odours (e.g., when you sweat)	0.325	0.218	0.217	0.111	0.593
Headaches	0.046	0.443	0.497	0.030	0.199
Feeling worried that the problem will recur	0.658	−0.080	0.167	0.356	0.252
Being worried about possible surgery	0.092	0.129	−0.053	0.792	0.022
Being stressed	0.077	0.562	−0.126	0.304	0.204
Snoring	0.691	0.372	0.170	0.407	0.027
Difficulty concentrating	0.693	0.315	0.263	−0.002	0.153
A poor sense of smell	0.115	0.092	0.105	0.082	0.836
Feeling embarassed due to the symptoms	0.490	0.078	0.493	0.380	0.261
Having a bad taste in your mouth	0.251	0.723	0.433	−0.069	0.036
Kneaded mouth Furry tongue	0.339	0.644	0.404	0.091	0.215
Feeling tired	0.691	0.506	0.012	0.227	−0.002
Being worried by long term drug efficacy	0.326	0.172	0.098	0.662	0.171
Feeling uncomfortable with other people	0.554	0.059	0.529	0.281	0.181
Having difficulty in controlling symptoms	0.761	0.004	0.181	0.212	0.201
Not performing well	0.847	0.218	0.141	0.005	0.031

Bold typeface shows the component upon which each item loaded most highly.