Characteristics of balance performance in the Chinese elderly by age and gender

BMC Geriatrics

Table 4 Postural stability in the elderly by age

Age (yrs)	n			II 5				II 6								II 7				II 8
		2		1		0		2		1		0		2		1		0		2		1		0
		n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%
60-	511	492	96.3^a_A	19	3.7	0	0.0	483	94.5^a_AB	28	5.5	0	0.0	468	91.6^a _B	42	8.2	1	0.2	450	88.1^a _B	60	11.7	1	0.2
65-	530	492	92.8^a_A	36	6.8	2	0.4	480	90.6^a_A	48	9.1	2	0.4	437	82.5^b _B	88	16.6	5	0.9	419	79.1^b _B	104	19.6	7	1.3
70-	378	350	92.6^a_A	26	6.9	2	0.5	342	90.5^a_A	34	9.0	2	0.5	293	77.5^b _B	80	21.2	5	1.3	274	72.5^b _B	93	24.6	11	2.9
75-	297	234	78.8^b_A	60	20.2	3	1.0	222	74.7^b_A	71	23.9	4	1.3	189	63.6^c _B	96	32.3	12	4.0	180	60.6^c _B	103	34.7	14	4.7
80-	165	108	65.5^c_AB	54	32.7	3	1.8	110	66.7^b_A	53	32.1	2	1.2	84	50.9^cd_C	74	44.8	7	4.2	85	51.5^cd_BC	71	43.0	9	5.5
85–97	103	51	49.5^c	43	41.7	9	8.7	44	42.7^c	49	47.6	10	9.7	39	37.9^d	47	45.6	17	16.5	36	35.0^d	47	45.6	20	19.4
Total	1984	1727	87.0 _A	238	12.0	19	1.0	1681	84.7 _A	283	14.3	20	1.0	1510	76.1 _B	427	21.5	47	2.4	1444	72.8 _B	478	24.1	62	3.1
χ²		279.6						266.4						245.3						205.1
P		<0.0001						<0.0001						<0.0001						<0.0001

Superscript lowercase letters (a, b, c, etc) indicated multiple comparison results among various age groups. Subscript capital letters (A, B, C, etc) indicated multiple comparison results between items. Same letters indicated non-significant difference, different letters indicated significant differences in statistics. Significance level was 0.05

ISSN: 1471-2318