Table 3 Relationship between each variable and number of total bacteria on the tongue at the day after surgery
Variable | p value | |
|---|---|---|
(i) Categorical variable | Number of total bacteria (logarithm) | |
Sex | ||
Female | 7.40 ± 0.288 | 0.454§ |
Male | 7.05 ± 0.753 | |
Primary disease | ||
Stomach cancer | 7.36 ± 0.493 | 0.373§ |
Colon cancer | 7.01 ± 0.767 | |
Smoking habit | ||
(−) | 7.25 ± 0.450 | 0.331§ |
(+) | 6.89 ± 0.996 | |
Drinking habit | ||
(−) | 6.93 ± 0.839 | 0.231§ |
(+) | 7.36 ± 0.389 | |
Diabetes | ||
(−) | 7.30 ± 0.434 | 0.068§ |
(+) | 6.57 ± 1.10 | |
Oral feeding after surgery | ||
(−) | 7.21 ± 0.363 | 0.383§ |
(+) | 6.84 ± 1.34 | |
Denture use | ||
(−) | 7.19 ± 0.883 | 0.643§ |
(+) | 7.02 ± 0.390 | |
(ii) Variable (continuous variable) | Spearman's correlation coefficient | |
Age (years) | − 0.010 | 0.970† |
Body mass index | 0.082 | 0.762† |
Leukocyte (μL) | − 0.084 | 0.757† |
Hemoglobin (g/dL) | − 0.296 | 0.266† |
Albumin (g/dL) | − 0.240 | 0.371† |
Creatinine (mg/dL) | 0.003 | 0.991† |
Number of teeth | 0.294 | 0.269† |
Operation time (min) | − 0.278 | 0.297† |
Number of baacteria before tongue cleaning at the day before surgery | 0.617 | 0.011† |
Number of bacteria after tongue cleaning at the day before surgery | 0.697 | 0.003† |