Variables Patients without a tooth removed (n = 275) Patients with tooth removed (n = 109) P-value
N % N %
Sex assigned
at birth 		Female 141 51.3 61 56 0.407
Male 134 48.7 48 44
Age, group < 25 years 40 14.5 17 15.6 0.794
≥ 25 years 235 85.5 92 84.4
Comorbidities
(n = 370b) 		No 149 56 72 69.2 0.02a
≤ 1 117 44 32 30.8
Smoking
(n = 292c) 		No 106 50.7 56 67.5 0.009a
Yes 103 49.3 27 32.5
Alcohol consumption
(n = 286d) 		No 74 35.7 29 36.7 0.88
Yes 133 64.3 50 63.3

aStatistically significant difference at P < 0.05 (Pearson's chi-squared test).
b267 without tooth removal and 103 with tooth removal.
c209 without tooth removal and 83 with tooth removal.
d207 without tooth removal and 79 with tooth removal.