Table 4.
Multivariable regression analysis of SIRT1 DNA methylation level (buccal smear samples)
| Variables | B | Standard error | Beta | t | p value |
|---|---|---|---|---|---|
| A. Total smear samples (N = 70) | |||||
| Age | 0.219 | 0.134 | 0.183 | 1.630 | 0.324 |
| Sex (male 1, female 2) | 3.107 | 4.314 | 0.080 | 0.720 | 1.000 |
| Betel quid chewers vs non-chewers | 11.633 | 3.645 | 0.358 | 3.192 | 0.007 |
| B. Betel quid chewer group (N = 25) | |||||
| Age | 0.189 | 0.396 | 0.095 | 0.478 | 1.000 |
| Sex | 9.529 | 9.782 | 0.164 | 0.974 | 1.000 |
| Chewing years | 1.280 | 0.455 | 0.558 | 2.814 | 0.031 |
Values in italics represent statistical significance (p < 0.05); p value is calculated using Bonferroni adjustment
B unstandardized coefficients, Beta standardized coefficients