. 2015 Jul 2;2015:794769. doi: 10.1155/2015/794769

Table 2.

Number of teeth (median and interquartile range) for patients from seven dental practices.

Age group (years)	Number of teeth (median and IQR)
Age group (years)	Dental practice A (N = 215)	Dental practice B (N = 219)	Dental practice C (N = 216)	Dental practice D (N = 218)	Dental practice E (N = 220)	Dental practice F (N = 212)	Dental practice G (N = 197)	SHIP-0 (N = 3990)
20–24	28 ± 2	28 ± 1	28 ± 1	28 ± 1	28 ± 0	28 ± 0	28 ± 1	28 ± 2
25–29	27 ± 2	28 ± 1^∗	28 ± 1	28 ± 1^∗	28 ± 1^∗	28 ± 2	28 ± 1	27 ± 4
30–34	28 ± 2	28 ± 1^∗	28 ± 1^∗	27 ± 3^∗	28 ± 2^∗	27 ± 4	28 ± 2^∗	25 ± 4
35–39	27 ± 5^∗	27 ± 2^∗	26 ± 5^∗	27 ± 3^∗	27 ± 2^∗	27 ± 5^∗	26 ± 5	24 ± 5
40–44	26 ± 4^∗	27 ± 4^∗	27 ± 4^∗	26 ± 4^∗	28 ± 2^∗	26 ± 4^∗	25 ± 5	23 ± 7
45–49	22 ± 4	26 ± 5	25 ± 3^∗	26 ± 6^∗	26 ± 4^∗	24 ± 6	24 ± 8	23 ± 7
50–54	23 ± 7	26 ± 9^∗	25 ± 4^∗	24 ± 8	25 ± 5^∗	24 ± 4^∗	24 ± 9	21 ± 9
55–59	21 ± 11	24 ± 9^∗	26 ± 7^∗	25 ± 8^∗	24 ± 5^∗	25 ± 6^∗	22 ± 8	19 ± 12
60–64	19 ± 18	23 ± 15^∗	26 ± 7^∗	24 ± 12^∗	25 ± 6^∗	20 ± 12^∗	17 ± 17	14 ± 17
65–69	22 ± 10^∗	21 ± 17^∗	22 ± 7^∗	18 ± 11^∗	23 ± 12^∗	23 ± 14^∗	13 ± 18	8 ± 17
70–74	1 ± 14	11 ± 19^∗	22 ± 11^∗	4 ± 21^∗	19 ± 14^∗	20 ± 10^∗	11 ± 21^∗	3 ± 11

Mann-Whitney U tests comparing the number of teeth between each dental practice and SHIP-0. p values were adjusted according to Bonferroni for multiple comparison; ^∗ p _adj < 0.0045.