Variable

<10 IU/L

≥10 IU/L

P

No. of subjects

86 (24.9)

260 (75.1)

Age in years

24.3 (7.1)

27.2 (6.3)

<0.001

Males

57 (66.3)

126 (48.5)

School Attended

School of dental medicine

35 (40.7)

88 (33.9)

Healthcare profession school (dental hygienists)

44 (51.2)

95 (36.5)

Postgraduate dental school

7 (8.1)

77 (29.6)

Vaccinated

In infancy

55 (64.0)

142 (54.6)

<0.001

At 12 years of age

31 (36.0)

118 (45.4)

Time in School (years)

1.8 (2.2)

2.9 (2.7)

<0.001

Boby Mass Index

23.9 (2.4)

22.8 (3.5)

<0.001