Table 2.

Characteristics of Latent Class and Pair-wise Comparisons.

Variable	C1 Non-Active		C2 Working-Active		C3 Comprehensive-Active		C4 Physical-Active		C5 Less-Active		Pair-Wise Comparison (F/χ2)
	M (SD)	Range	M (SD)	Range	M (SD)	Range	M (SD)	Range	M (SD)	Range
Validated Age	92.64 (8.51)	65~116	82.28 (10.31)	65~110	77.77 (9.56)	65~106	84.48 (10.38)	65~108	88.72 (9.73)	65~114	C3 < C2 < C4 < C5 < C1 (742.59 ***)
Male (%)	34.35	—	38.99	—	64.69	—	54.12	—	59.98.	—	C1 < C2 < C4 < C5 < C3 (2319.97 ***)
Living alone (%)	14.88	—	20.95	—	13.66	—	18.06	—	7.14	—	C5 < C3, C1 < C4 < C2 (217.94 ***)
Urban residence (%)	15.78	—	7.91	—	41.77	—	35.57	—	26.50	—	C2 < C1 < C5 < C4 < C3 (937.92 ***)
Years of education	1.16 (2.48)	0~17	1.49 (2.61)	0~25	5.19 (4.34)	0~25	2.66 (3.60)	0~22	2.73 (3.79)	0~23	C1 < C2 < C4, C5 < C3 (541.69 ***)
Professional/administration occupation (%)	3.66	—	2.70	—	24.70	—	11.47	—	9.57	—	C2, C1 < C5 < C4 < C3 (1065.46 ***)
ADL-related disability	7.55 (2.65)	6~18	6.06 (0.40)	6~16	6.07 (0.45)	6~14	6.22 (0.83)	6~16	6.62 (1.51)	6~18	C2, C3 < C4 < C5 < C1 (548.67 ***)
Subjective health	3.28 (0.96)	1~5	3.47 (0.88)	1~5	3.72 (0.88)	1~5	3.59 (0.88)	1~5	3.46 (0.91)	1~5	C1 < C5, C2 < C4 < C3 (67.16 ***)
General cognition	25.26 (3.51)	18.54~30	27.31 (2.99)	18.54~30	28.64 (2.08)	18.63~30	27.38 (2.88)	18.70~30	26.66 (3.31)	18.54~30	C1 < C5 < C2, C4 < C3 (360.26 ***)
Orientation	0.94 (0.14)	0~1	0.97 (0.10)	0~1	0.99 (0.05)	0.40~1	0.98 (0.09)	0~1	0.96 (0.11)	0~1	C1 < C5 < C2, C4 < C3 (75.47 ***)
Calculation	0.75 (0.34)	0~1	0.86 (0.27)	0~1	0.95 (0.16)	0~1	0.87 (0.26)	0~1	0.85 (0.27)	0~1	C1 < C5, C2, C4 < C3 (132.09 ***)
Recall	0.71 (0.38)	0~1	0.80 (0.33)	0~1	0.89 (0.26)	0~1	0.79 (0.34)	0~1	0.77 (0.35)	0~1	C1 < C5, C4, C2 < C3 (67.00 ***)
Language	0.92 (0.17)	0~1	0.95 (0.13)	0~1	0.98 (0.08)			0.17~1	0.97 (0.09)	0~1	C1< C5 < C2 < C4 < C3 (75.52 ***)

Note: *** p < 0.001. Proportion (yes%) and χ² test were applied for binary variables, and F test was applied for continuous variables.