Table 1. General characteristics of subjects according to the grip strength

	Grip strength		p value2)
	≤50 percentile1) (n=52)	>50 percentile1) (n=51)
Age (yrs)	20.73±1.77	20.33±1.89	0.2740
Sex
Male	27(51.92)	26(50.98)	0.9238
Female	25(48.08)	25(49.02)
Residence type
Home	3(6.00)	8(15.69)	0.1476
Dormitory	26(52.00)	29(56.86)
Self-boarding	21(42.00)	14(27.45)
Smoking status
Current smoking	10(19.23)	7(13.73)	0.94723)
Sometimes smoking	4(7.69)	4(7.84)
Past smoking	3(5.77)	3(5.88)
Non-smoking	35(67.31)	37(72.55)
Frequency of drinking
<1 time/month	12(23.08)	12(23.53)	0.9217
2~4 time/month	26(50.00)	27(52.94)
≥2 times/week	14(26.92)	12(23.53)
Consumption of dietary supplements
Yes	17(32.69)	16(31.37)	0.8859
No	35(67.31)	35(68.63)

Cut-off point: Male 46.8 kg, Female 26.5 kg.
Calculated from chi-square test or Student’s t-test.
Calculated from Fisher’s exact test.