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Changes in the number of acne lesions before and following the procedure
| Variable | Baseline | After the procedure | Mean difference (SD) | p‐Value |
|---|---|---|---|---|
| Total number of acne lesions (mean ± SD) | 18.70 ± 9.056 | 6.80 ± 4.34 | 11.90 (5.53) | <0.001 |
| Mean total number of ice peak lesions (mean ± SD) | 9.7 ± 7.65 | 4 ± 3.74 | 5.70 (4.24) | 0.002 |
| Mean total number of rolling lesions (mean ± SD) | 7 ± 2.70 | 1.80 ± 0.79 | 5.200 (2.251) | <0.001 |
| Total number of boxcar lesions (mean ± SD) | 2 ± 1.700 | 1 ± 0.943 | 1 (0.943) | 0.023 |
