Health behaviors and tooth retention among older adults in China: findings from the 4th Chinese national oral health survey

Table 1 General characteristics of a sample of Chinese population (n = 9054) according to number of remained teeth

Variable	Category	No. of population	Ratio	Number of retention teeth < 20		Number of retention teeth ≥ 20		χ²	P-Value
Variable	Category	No. of population	Ratio	n	%	n	%	χ²	P-Value
Age(yr)	55–64	4623	51.1	503	29.7	4120	56.0	379.840	< 0.001
Age(yr)	65–74	4431	48.9	1190	70.3	3241	44.0
Sex	Male	4514	49.9	865	51.1	3649	49.6	1.273	0.135
Sex	Female	4540	50.1	828	48.9	3712	50.4
Residence	Urban	4587	50.7	773	45.7	3814	51.8	20.862	< 0.001
Residence	Rural	4467	49.3	920	54.3	3547	48.2
Region	Eastern	3196	35.3	598	35.3	2598	35.3	8.562	0.014
	Western	3565	39.4	709	41.9	2856	38.8
	Central	2293	25.3	386	22.8	1907	25.9
Education level (yrs)	≤ 6	4803	53.1	1116	65.9	3687	50.1	148.168	< 0.001
	7–9	2370	26.2	359	21.2	2011	27.3
	10–12	1387	15.3	168	9.9	1219	16.6
	13 ≤	494	5.5	50	3.0	444	6.0
Occupation	Non-white collar	8490	93.8	1605	94.8	6885	93.5	3.792	0.027
Occupation	White collar	564	6.2	88	5.2	476	6.5
Periodontal health	No	8411	92.9	1330	78.6	7081	96.2	649.000	< 0.001
Periodontal health	Yes	643	7.1	363	21.4	280	3.8
Self-reported oral health	Fair/poor	6734	74.4	1450	85.6	5284	71.8	138.801	< 0.001
Self-reported oral health	Good	2320	25.6	243	14.4	2077	28.2
Self-reported general health	Fair/poor	5485	60.6	1067	63.0	4418	60.0	5.205	0.012
Self-reported general health	Good	3569	39.4	626	37.0	2943	40.0
Total		9054	100.0	1693	100.0	7361	100.0

ISSN: 1472-6831