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Table 1 Demographic characteristics of the study participants

From: Knowledge, perception, and clinical experiences on molar incisor hypomineralization amongst Portuguese dentists

Characteristics

Total

N = 257

n (%)

GDPs

N = 130

n (%)

PD

N = 24

n (%)

ODS

N = 103

n (%)

p-value

Sex

Female

174 (67.7)

98 (75.4)

24 (100.0)

52 (50.5)

 < 0.001

Male

83 (32.3)

32 (24.6)

0 (0.0)

51 (49.5)

Age group

 ≤ 30

101 (39.3)

71 (54.6)

6 (25.0)

24 (23.3)

 < 0.001

31–40

69 (26.8)

19 (14.6)

10 (41.7)

40 (38.8)

41–50

75 (29.2)

36 (27.7)

6 (25.0)

33 (32.0)

 ≥ 51

12 (4.7)

4 (3.1)

2 (8.3)

6 (5.8)

Years of practice

 < 5

70 (27.2)

56 (43.1)

2 (8.3)

12 (11.7)

 < 0.001

5–10

70 (27.2)

30 (23.1)

8 (33.3)

32 (31.1)

11–20

90 (35.0)

35 (26.9)

10 (41.7)

45 (43.7)

 > 21

27 (10.5)

9 (6.9)

4 (16.7)

14 (13.6)

Degree level

DDS/MSc/PHD

112 (43.6)

64 (24.9)

6 (2.3)

42 (16.3)

 < 0.001

Post-graduation + MSc/PhD

122 (47.5)

63 (24.5)

8 (3.1)

51 (19.8)

Specialty + MSc/PhD

32 (12.5)

3 (1.2)

14 (5.4)

15 (5.8)

  1. DDS Doctor of Dental Surgery, GDP General Dental Practitioner, MSc Master of Science, PD Pediatric Dentist, PhD Doctor of Philosophy, ODS Other Dental Specialties
  2. Statistically significant (p < 0.05), Pearson’s chi-square (χ2) test