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. 2020 Feb 26;46(1):49–57. doi: 10.5125/jkaoms.2020.46.1.49

Table 3. Characteristics according to antibiotic prescription after tooth extraction.

Variable Division Antibiotic prescription P-value
Yes No
n % n %
All 412,308 81.85 91,417 18.15
Sex Male 227,756 82.15 49,491 17.85 <0.001
Female 184,552 81.49 41,926 18.51
Age (yr) 19-30 76,123 83.39 15,161 16.61 <0.001
31-40 48,963 83.37 9,769 16.63
41-50 72,278 83.10 14,700 16.90
51-60 93,888 82.13 20,428 17.87
61-70 64,387 80.27 15,827 19.73
≥71 56,669 78.49 15,532 21.51
Household income Low 67,428 82.02 14,784 17.98 <0.001
Medium-low 65,325 82.29 14,062 17.71
Medium 77,900 82.17 16,904 17.83
Medium-high 90,833 82.08 19,825 17.92
High 110,822 81.09 25,842 18.91
Diabetes mellitus Yes 113,826 80.43 27,697 19.57 <0.001
No 298,482 82.41 63,720 17.59
Hypertension Yes 139,046 80.39 33,922 19.61 <0.001
No 273,262 82.62 57,495 17.38
Type of dental institution Dental hospital 39,571 81.79 8,812 18.21 0.697
Dental clinic 372,737 81.86 82,605 18.14
Region of dental institution Urban 372,084 81.85 82,484 18.15 0.884
Rural 40,224 81.83 8,933 18.17
Year of prescription 2011 78,295 80.11 19,445 19.89 <0.001
2012 78,998 81.16 18,333 18.84
2013 82,282 82.14 17,893 17.86
2014 84,997 82.70 17,777 17.30
2015 87,736 83.00 17,969 17.00
Type of tooth extraction Incisor extraction 48,140 77.03 14,353 22.97 <0.001
Molar extraction 268,549 81.94 59,181 18.06
Complicated extraction1 42,808 84.00 8,152 16.00
Simply impacted tooth 14,338 84.35 2,661 15.65
Complexly impacted tooth2 16,331 86.03 2,651 13.97
Completely impacted tooth3 22,142 83.36 4,419 16.64

1Cases where simple extraction was not possible due to root hypertrophy, root dilacerations, or osseointegration.

2Cases involving tooth splitting.

3Simultaneous tooth splitting and ostectomy of impacted tooth with ≥2/3 of crown impacted into alveolar bone.

P-value calculated using chi-squared test.