Examination of useful items for the assessment of fall risk in the community-dwelling elderly Japanese population

Table 5 The result of factor analysis on behavior and character

Items	Factor analysis					High-fall risk rate
	Factor loading				Communality	Non-faller (%)	Faller (%)	Difference (%)
	F1	F2	F3	F4	Communality	Non-faller (%)	Faller (%)	Difference (%)
Sit at home^a	0.734	−0.153	−0.187	−0.071	0.412	13.9	25.7	11.8 ns
Go out on only rare occasions^a	0.777	−0.114	−0.117	−0.021	0.458	6.7	14.9	8.2 ns
Inactivity	0.456	−0.082	−0.372	−0.013	0.210	4.6	9.1	4.5 ns
Participate in public events	0.486	0.173	0.231	−0.175	0.094	43.5	42.9	−0.6 ns
Have many occasions to go out	−0.784	0.087	0.095	0.111	0.468	86.1	81.1	−5.0 ns
Go to the toilet at night^a	0.125	−0.759	0.028	−0.067	0.232	36.3	46.9	10.6 ns
Act cautiously^a	0.141	0.474	0.195	0.105	0.075	24.0	34.3	10.3 ns
Go to the toilet frequently	0.198	−0.748	−0.016	0.012	0.255	17.8	28.0	10.2 ns
Confident about not falling^a	0.194	0.010	−0.715	−0.136	0.255	30.5	61.1	30.6*
Fear of falling^a	0.340	−0.264	−0.589	0.021	0.290	20.3	36.6	16.3 ns
Keep calm on a daily basis	0.036	0.192	−0.566	−0.076	0.114	9.6	22.3	12.7 ns
Climb up steep slope^a	0.021	0.056	−0.032	0.621	0.086	17.6	19.4	1.8 ns
Rush everywhere^a	−0.169	0.120	0.007	0.470	0.107	32.7	32.6	−0.1 ns
Go out on a rainy or snowy day	−0.237	0.006	0.120	0.668	0.219	41.7	41.1	−0.6 ns
Go out at night	−0.022	0.036	0.112	0.496	0.064	8.4	7.4	−1.0 ns
Climb the stairs	−0.071	0.044	0.221	0.439	0.091	52.6	48.0	−4.6 ns
Hospitalization in the preceding year	0.122	−0.207	−0.140	−0.099	0.053	8.1	20.0	11.9 ns
Communicate with many people	0.368	−0.063	0.303	−0.199	0.072	13.2	10.3	−2.9 ns
Eigenvalue	2.67	1.62	1.66	1.63
Accumulative contribution	14.8%	23.8%	33.0%	42.1%

Values in italics mean representative items of each factor
F1, Inactivity; F2, risk behavior A; F3, fear of fall; F4, risk behavior B; ns, not significant
*P < 0.05
^aSelected items as useful items

ISSN: 1347-4715