Table 3.
Results of regression analyses including cycle phase and excluding gender.
| Dependent Variable | Predictors | B | p | 95% CIs | |
|---|---|---|---|---|---|
| NRS during tattooing | Age | −0.01 | 0.704 | −0.04 | 0.03 |
| BMI | −0.01 | 0.704 | −0.04 | 0.03 | |
| Education | 0.28 | 0.004 | 0.09 | 0.48 | |
| Time | 0.37 | 0.001 | 0.27 | 0.46 | |
| Bleeding | 0.22 | 0.239 | −0.15 | 0.60 | |
| Stress level | 0.42 | 0.001 | 0.28 | 0.58 | |
| Analgesics taken prior to the procedure | 1.54 | 0.001 | 0.58 | 2.51 | |
| Body area | - | 0.323 | - | - | |
| Cycle phase | - | 0.691 | - | - | |
| NRS after tattooing | Age | −0.02 | 0.117 | −0.04 | 0.01 |
| BMI | −0.01 | 0.683 | −0.03 | 0.02 | |
| Education | 0.17 | 0.037 | 0.01 | 0.34 | |
| Time | 0.20 | 0.001 | 0.13 | 0.27 | |
| Bleeding | 0.45 | 0.003 | 0.13 | 0.74 | |
| Stress level | 0.15 | 0.025 | 0.03 | 0.29 | |
| Analgesics taken prior to the procedure | 0.64 | 0.193 | −0.33 | 1.66 | |
| Body area | - | 0.642 | - | - | |
| Cycle phase | - | 0.975 | - | - | |
| Increasing pain | Age | <0.01 | 0.647 | −0.02 | 0.01 |
| BMI | <0.01 | 0.642 | −0.01 | 0.01 | |
| Education | 0.05 | 0.221 | −0.03 | 0.14 | |
| Time | 0.19 | 0.001 | 0.16 | 0.22 | |
| Bleeding | 0.17 | 0.021 | 0.03 | 0.31 | |
| Stress level | 0.05 | 0.063 | 0.00 | 0.11 | |
| Analgesics taken prior to the procedure | 0.30 | 0.026 | 0.03 | 0.56 | |
| Body area | - | 0.689 | - | - | |
| Cycle phase | - | 0.139 | - | - | |
| Dependent variable | Predictors | OR | p | 95% CIs | |
| Pain during tattoing | Age | 0.02 | 0.415 | −0.02 | 0.07 |
| BMI | −0.02 | 0.357 | −0.06 | 0.02 | |
| Education | 0.18 | 0.147 | −0.07 | 0.42 | |
| Time | 0.29 | 0.001 | 0.17 | 0.44 | |
| Bleeding | 0.49 | 0.040 | −0.01 | 0.95 | |
| Stress level | 0.24 | 0.033 | 0.02 | 0.47 | |
| Analgesics taken prior to the procedure | 0.87 | 0.192 | −0.60 | 21.56 | |
| Body area | - | 0.908 | - | - | |
| Cycle phase | - | 0.622 | - | - | |
| Radiating pain | Age | −0.01 | 0.015 | −0.01 | <0.01 |
| BMI | <0.01 | 0.979 | −0.01 | 0.01 | |
| Education | 0.03 | 0.124 | −0.01 | 0.07 | |
| Time | 0.04 | 0.001 | 0.03 | 0.06 | |
| Bleeding | 0.01 | 0.872 | −0.06 | 0.07 | |
| Stress level | 0.02 | 0.174 | −0.01 | 0.05 | |
| Analgesics taken prior to the procedure | <0.01 | 0.976 | −0.16 | 0.18 | |
| Body area | - | 0.161 | - | - | |
| Cycle phase | - | 0.545 | - | - | |
B: regression coefficient from linear multiple regression; OR: odds ratio from multiple logistic regression; 95% CIs: bootstrap generated 95% confidence intervals. PLEASE NOTE: regression coefficients (linear regression) and odds ratios (logistic regression) were generated for continuous and binary predictors, respectively. For the categorical predictors ‘Body area’ (four categories) and ‘Cycle phase’ (three categories), only p values were reported, indicating whether the means (for continuous outcomes) or proportions (for binary outcomes) differ significantly among the groups constituted by categorical predictors.