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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