JKAOH Journal of Korean Acadomy of Oral Health
pISSN 1225-388X eISSN 2093-7784

Table. 5.

Differences in P. gingivalis of prevalence by smoking amounts and periods in smokers

Characteristics Division Total P. gingivalis genotype

I Ib II III IV V






(-) (+) (-) (+) (-) (+) (-) (+) (-) (+) (-) (+)
Smoking amounts (cigarette) Total 77 (100.0) 62 (100.0) 15 (100.0) 63 (100.0) 14 (100.0) 19 (100.0) 58 (100.0) 72 (100.0) 5 (100.0) 70 (100.0) 7 (100.0) 74 (100.0) 3 (100.0)
≤10 23 (29.9) 17 (27.4) 6 (40.0) 17 (27.0) 6 (42.9) 8 (42.1) 15 (25.9) 18 (25.0) 5 (100.0) 22 (31.4) 1 (14.3) 22 (29.7) 1 (33.3)
11-20 45 (58.4) 36 (58.1) 9 (60.0) 38 (60.3) 7 (50.0) 10 (52.6) 35 (60.3) 45 (62.5) 0 (0.0) 41 (58.6) 4 (57.1) 44 (59.5) 1 (33.3)
≥21 9 (11.7) 9 (14.5) 0 (0.0) 8 (12.7) 1 (7.1) 1 (5.3) 8 (13.8) 9 (12.5) 0 (0.0) 7 (10.0) 2 (28.6) 8 (10.8) 1 (33.3)
P-value* 0.262 0.563 0.400 0.003* 0.238 0.339
Smoking periods (yrs) Total 77 (100.0) 62 (100.0) 15 (100.0) 63 (100.0) 14 (100.0) 19 (100.0) 58 (100.0) 72 (100.0) 5 (100.0) 70 (100.0) 7 (100.0) 74 (100.0) 3 (100.0)
≤10 15 (19.5) 10 (16.1) 5 (33.3) 11 (17.5) 4 (28.6) 6 (31.6) 9 (15.5) 13 (18.1) 2 (40.0) 14 (20.0) 1 (14.3) 14 (18.9) 1 (33.3)
11-20 37 (48.0) 31 (50.0) 6 (40.0) 31 (49.2) 6 (42.9) 3 (15.8) 34 (58.6) 36 (50.0) 1 (20.0) 34 (48.6) 3 (42.9) 37 (50.0) 0 (0.0)
≥21 25 (32.5) 21 (33.9) 4 (26.7) 21 (33.3) 4 (28.6) 10 (52.6) 15 (25.9) 23 (31.9) 2 (40.0) 22 (31.4) 3 (42.9) 23 (31.1) 2 (66.7)
P-value* 0.334 0.634 0.003* 0.269 0.876 0.188

*By exact samples fisher’s test.

J Korean Acad Oral Health 2021;45:10~15 https://doi.org/10.11149/jkaoh.2021.45.1.10
© Journal of Korean Academy of Oral Health