Dysphagia and masticatory performance as a mediator of the xerostomia to quality of life relation in the older population

Table 1 Basic information according to xerostomia group (n=1,076)

Variables	Total		Xerostomia-free (n=957)		Xerostomia (n=119)		P
Variables	n	%	n	%	n	%
Age (M±SD)^†	74.0±6.4		73.7±6.3		76.5±6.6		<.001
Sex							0.03
Men	308	28.6	284	29.7	24	20.2
Women	768	71.4	673	70.3	95	79.8
Education level							<.001
Illiterate/ Elementary school	495	46.0	422	44.1	73	61.3
Junior high/ High school	366	34.0	333	34.8	33	27.7
Above technical school/ College	215	20.0	202	21.1	13	10.9
BMI (M±SD)^†	24.3±3.5		24.3±3.5		24.2±3.8		0.888
Number of natural teeth							<.001
< 20 teeth	450	41.8	379	39.6	71	59.6
≥ 20 teeth	626	58.2	578	60.4	48	40.3
Number of functional teeth							<.001
< 20 teeth	399	37.1	334	34.9	65	54.6
≥ 20 teeth	677	62.9	623	65.1	54	45.4
Occlusal condition							<.001
A	445	41.4	416	43.5	29	24.4
B	415	38.6	359	37.5	56	47.1
C	216	20.1	182	19.0	34	28.6
Implant	45	4.2	43	4.5	2	1.7	0.148
Edentulous	94	8.7	79	8.3	15	12.6	0.113
Removable denture
CD	202	18.8	171	17.9	31	26.1	0.031
RPD	319	29.7	269	28.1	50	42.0	0.002
PI (0- 3) (M±SD)^†	0.9±0.5		0.9±0.5		1.0±0.7		0.569
Tongue coating (0-12) (M±SD)^†	4.5±3.3		4.5±3.3		3.9±3.3		0.058
Masticatory performance							<.001
Good	373	35.1	350	37.0	23	19.5
Moderate	410	38.6	364	38.5	46	39.0
Poor	280	26.3	231	24.4	49	41.5
Dysphagia	136	12.6	97	10.1	39	32.8	<.001
Sarcopenia	46	4.3	32	3.3	14	11.8	<.001
Frailty							<.001
Robust	857	79.7	788	82.3	69	58.0
Pre-frailty	205	19.1	159	16.6	46	38.7
Frailty	14	1.3	10	1.0	4	3.4
GOHAI (M±SD) (0-60) ^†	53.0±6.8		53.7±6.3		47.9±8.8		<.001

chi-square test; †two sample t test
BMI Body mass index, CD Complete denture, RPD Removable complete denture, PI Plaque index

ISSN: 1471-2318