Table 2.

Comparison of self-reported and clinically-examined numbers of teeth

	Clinically-examined number of teeth		Self-reported number of teeth		ρ a	p-value
	min. – max.	mean ± SD	min. – max.	mean ± SD
Total (1501)	0 - 32	26.5 ± 4.3	0 - 32	25.1 ± 5.1	0.69	<0.01
Male (n)
35 ~ 49 (224)	22 - 32	28.5 ± 1.8	10 - 32	27.1 ± 2.7	0.43	<0.01
50 ~ 59 (255)	7 - 32	27.7 ± 2.6	8 - 32	26.4 ± 3.5	0.63	<0.01
60 ~ 69 (284)	4 - 32	24.9 ± 5.5	4 - 32	22.8 ± 6.3	0.78	<0.01
70 ~ 87 (126)	4 - 32	24.2 ± 5.7	3 - 32	21.9 ± 6.6	0.82	<0.01
Total (889)	4 - 32	26.5 ± 4.4	3 - 32	24.8 ± 5.3	0.70	<0.01
Female (n)
35 ~ 49 (200)	11 - 32	27.9 ± 2.3	14 - 32	27.3 ± 2.3	0.47	<0.01
50 ~ 59 (208)	13 - 32	27.4 ± 2.5	10 - 32	26.3 ± 3.6	0.52	<0.01
60 ~ 69 (158)	0 - 31	24.5 ± 5.3	0 - 32	23.2 ± 6.0	0.77	<0.01
70 ~ 89 (46)	6 - 28	22.4 ± 6.2	2 - 28	21.5 ± 7.4	0.91	<0.01
Total (612)	0 - 32	26.4 ± 4.1	0 - 32	25.5 ± 4.8	0.67	<0.01

min minimum, max maximum, SD standard deviation

^aSpearman’s rank correlation coefficient