Table II.

Demographic and clinical characteristics of the patients and results of the clinically normal mucosa tissue investigated for SLPI expression.

	Age/gender (years)	Mucosal sitea	Diagnosisb	Smoking habitsc	Alcohold	SLPIe
1	51/M	Soft palate	Snoring	Quit (1.5 y)	-	+
2	63/M	Hypopharynx	Zenker’s diverticulum	Quit (1.5 y), 5 py	<10 g	++
3	51/M	Oral cavity	Branchial cyst	30 py	<10 g	++
4	52/M	Larynx	Chronic laryngitis	50 py	<10 g	−/+
5	43/F	Larynx	Reinke’s edema	40 py	<10 g	++
6	49/M	Soft palate	Snoring	30 py	<10 g	+
7	26/M	Soft palate	Chronic tonsilitis	15 py	<10 g	++
8	13/F	Soft palate	Chronic tonsillitis	-	-	+
9	6/M	Soft palate	Chronic tonsillits	-	-	+
10	53/M	Hypopharynx	Vallecula cyst	-	<10 g	+
11	59/M	Soft palate	Snoring	-	<10 g	+
12	2/F	Soft palate	Hyperplasia of tonsils	-	-	+
13	48/M	Soft palate	Snoring	-	<10 g	+
14	24/F	Soft palate	Chronic tonsillitis	-	<10 g	−
15	24/M	Soft palate	Chronic tonsillitis	-	<10 g	++
16	16/F	Soft palate	Chronic tonsillitis	-	-	+
17	46/M	Oropharynx	Chronic tonsillitis	-	-	−/+
18	22/F	Soft palate	Chronic tonsillitis	-	-	++
19	4/F	Oropharynx	Chronic tonsillitis	-	-	+

M, male; F, female; y, years; g, gram; SLPI, secretory leukocyte protease inhibitor.

^aAnatomical site from where the biopsy was obtained.

^bDiagnosis and reason for surgery.

^cTobacco smoke consumption in packs per year (py).

^dAlcohol drinking habits of the patients. All patients reported drinking occasionally, thus are light drinkers with <10 g alcohol uptake per day.

^eSLPI antibody reactivity was scored on a semi-quantitative scale, according to Cordes et al(1).