Status of dental caries and associated factors in Tibetan adults: findings from the fourth China National Oral Health Survey

Table 1 Crown caries status of three age groups in Tibet, 2015–2016

Age group	Variables	n	%	DMFT		D			M			F			Filling rate (%)
Age group	Variables	n	%	Mean	SD	Mean	SD	Rate (%)	Mean	SD	Rate (%)	Mean	SD	Rate (%)	Filling rate (%)
35–44	Male	71	97.2	6.65*	4.43	3.37*	2.93	50.64	3.17	2.48	47.67	0.11	0.36	1.69	3.24
	Female	78	98.7	8.50	5.05	5.47	3.98	64.40	2.97	2.43	34.99	0.05	0.27	0.60	0.92
	Urban	78	97.1	7.72	4.59	4.45	3.23	57.64	3.12	2.61	40.37	0.15*	0.43	1.99	3.34
	Rural	71	98.8	7.51	5.12	4.49	4.11	59.85	3.01	2.27	40.15	0.00	0.00	0.00	0
	Total	149	98.0	7.62	4.84	4.47	3.66	58.68	3.07	2.45	40.26	0.08	0.32	1.06	1.77
55–64	Male	73	97.3	11.19	8.59	4.77	5.48	42.59	6.63	6.81	57.04	0.04	0.20	0.37	0.85
	Female	78	98.7	13.65	7.60	5.59	4.71	43.29	7.68	5.96	56.24	0.06	0.30	0.47	1.07
	Urban	73	98.6	12.82	8.18	5.73	5.15	44.66	7.01	6.16	54.70	0.08	0.32	0.64	1.42
	Rural	78	97.4	12.13	8.18	5.01	5.08	41.33	7.09	6.65	58.46	0.03	0.16	0.21	0.51
	Total	151	98.0	12.46	8.16	5.36	5.11	42.99	7.05	6.40	56.59	0.05	0.25	0.43	0.98
65–74	Male	80	100	21.05	8.71	3.37*	3.78	16.03	17.65	9.31	83.85	0.03	0.22	0.12	0.74
	Female	66	100	21.79	9.24	5.86	5.46	26.91	15.91	9.37	70.02	0.02	0.12	0.07	0.26
	Urban	71	100	19.46*	9.11	4.97	4.40	25.54	14.48*	8.91	74.38	0.01	0.12	0.07	0.28
	Rural	75	100	23.20	8.42	4.05	5.07	17.47	19.12	9.23	82.41	0.03	0.23	0.11	0.65
	Total	146	100	21.38	8.93	4.50	4.76	21.04	16.86	9.34	78.86	0.02	0.19	0.10	0.45
Total		446	98.7	13.76	9.41	4.78	4.56	34.73	8.93	8.81	64.90	0.05	2.56	0.37	1.07

*P < 0.05when comparing means between male and female, or urban and rural
Abbreviations: D decayed tooth, M missing tooth, F filled tooth, DMFT decayed, missing, and filled tooth, S.D. standard deviation

ISSN: 1472-6831