Secondary Bleedings in Oral Surgery Emergency Service: A Cross-Sectional Study
Table 5
Statistical comparisons of patients who were admitted/were not admitted to the hospital.
Admitted
Not admitted
Statistical test
Results
Total
9 (12 (5, 19)1%)
67 (88 (81, 95) %)
—
—
Mean age (years)
68
66
One-sided t-test, unequal variances/dCohen
0.46/0.05
Surgical history
Exodontia
6 (9%)
62 (91%)
Odds ratio/χ2 test/Cramer’s V
0.16/0.022
Number of extracted teeth (mean)
4.2
2.7
One-sided t-test, unequal variances/dCohen
0.14/0.88
Periodontal surgery
2 (100%)
0 (0%)
χ2 test/Cramer’s V
<0.0012/0.001
Apicoectomy
1 (17%)
5 (83%)
Odds ratio/χ2 test/Cramer’s V
1.55/0.702/0.10
Anticoagulation
Phenprocoumon
6 (15%)
35 (85%)
Odds ratio/χ2 test/Cramer’s V
1.83/0.41/0.07
INR (mean)
1.80
1.92
One-sided t-test, unequal variances/dCohen/dCohen
0.25/0.31
ASA
2 (7%)
25 (93%)
Odds ratio/χ2 test/Cramer’s V
0.48/0.37/0.07
ASA + clopidogrel3
1 (33%)
3 (67%)
Dabigatran
0 (0%)
2 (100%)
Rivaroxaban
0 (0%)
2 (100%)
195% confidence interval each; 2expected values of the χ2 test too low → limited accuracy; 3due to very small number of cases, no further statistical testing was carried out.
