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Table 1 Prevalence and male/female ratio of ST in the 13,336-participant baseline population based on different age groups

From: Prevalence, clinical characteristics, and 3-dimensional radiographic analysis of supernumerary teeth in Guangzhou, China: a retrospective study

Age

n/N (%)a

Male/Femaleb

Male

Female

Total

3

6/221

(2.71)

2/180

(1.11)

8/401

(2.00)

2.4:1

4

30/506

(5.93)

9/382

(2.36)

39/888

(4.39)

2.5:1

5

88/756

(11.64)

22/539

(4.08)

110/1295

(8.49)

2.9:1

6

125/979

(12.77)

36/716

(5.03)

161/1695

(9.50)

2.5:1

7

147/1047

(14.04)

44/758

(5.80)

191/1805

(10.58)

2.4:1

8

110/960

(11.46)

30/740

(4.05)

140/1700

(8.24)

2.8:1

9

68/809

(8.41)

21/619

(3.39)

89/1428

(6.23)

2.5:1

10

38/645

(5.89)

17/605

(2.81)

55/1250

(4.40)

2.1:1

11

38/617

(6.16)

17/649

(2.62)

55/1266

(4.34)

2.4:1

12

29/692

(4.19)

13/916

(1.42)

42/1608

(2.61)

3.0:1

Total

679/7232

(9.39)

211/6104

(3.46)

890/13,336

(6.67)

2.7:1

  1. a n: number of patients with ST; N: number of patients as the baseline population, (%): prevalence of ST.
  2. b Male/female: prevalence ratio of supernumerary tooth in males relative to females.