Table 1.

Six components of oral frailty used in this study.

Component	Prevalence, n (%)
1. Few remaining teeth: Number of teeth < 20	150 (32.2%)
2. Low masticatory performance: Increased surface area of comminuted gummy jelly; men, <1178 mm2; women, <1743 mm2)	78 (16.7%)
3. Low articulatory oral motor skill: Oral-DDK “ta”; men < 5.2 times/s; women, 5.4 times/s	69 (14.8%)
4. Low TP: men, <27.4 kPa; women, <26.5 kPa	81 (17.4%)
5. Difficulties chewing tough foods: An answer of “yes” to the question “Do you have any difficulties chewing tough foods compared to six months ago?”	70 (15.0%)
6. Difficulties in swallowing tea or soup: An answer of “yes” to the question “Have you choked on your tea or soup recently?”	108 (23.2%)

Oral-DDK, oral diadochokinesis; TP, tongue pressure.