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Table 1 Description of risk factors affecting infection after the surgery of cyst enucleation

From: Risk factors for postoperative infection of odontogenic cysts associated with mandibular third molar

Risk factors Total (n = 81) Infection group (n = 21) Non-infection group (n = 61) p value
Host factors
 Gender (number of males) 64 (79%) 19 (90.5%) 45 (75%) 0.24
 Smoking 28 (34.6%) 9 (42.9%) 19 (31.7%) 0.35
 Diabetes mellitus 4 (6.7%) 0 (0%) 4 (100 %) 0.34§
 Age (years) 47.3 ± 14.0 45.3 ± 14.0 48.0 ± 14.1 0.92
Treatment factors
 Bone grafting 33 (40.7%) 12 (57.1%) 21 (35.0%) 0.12
 Related tooth extraction 15 (18.5%) 2 (9.5%) 13 (21.7%) 0.36
 Previous decompression 6 (7.4%) 0 (0) 6 (100 %) 0.19§
 Type of antibiotics (number of cephalosporin)* 21 (25.9%) 8 (38.1%) 14 (23.3%) 0.30
Cystic lesion factors
 Cortex perforation 24 (29.6%) 7 (33.3%) 17 (28.3%) 0.66
 Preoperative infection 8 (9.9%) 2 (9.5%) 6 (10.0%) 0.99§
 Preoperative cyst size (longest diameter of lesion, mm) 20.6 ± 5.21 20.2 ± 4.71 20.7 ± 5.4 0.41
 Type of cyst (number of dentigerous cyst)** 67 (83%) 14 (66.7%) 53 (88.3%) 0.054
  1. Chi-square test
  2. §Fisher’s exact test
  3. Student’s t test
  4. *Two kinds of antibiotics were used, amoxicillin with clavulanic acid and cephalosporin
  5. **All subjects were classified as dentigerous cyst or odontogenic keratocyst