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

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

Variables Total Xerostomia-free
(n=957)
Xerostomia (n=119) P
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
  1. chi-square test; †two sample t test
  2. BMI Body mass index, CD Complete denture, RPD Removable complete denture, PI Plaque index