| The frequency of facial acne and truncal acne is similar. |
13.9 |
| There is no difference in the frequency of truncal acne between males and females. |
25.0 |
| The duration of illness for facial acne and truncal acne is similar. |
16.7 |
| The etiology of truncal acne differs somewhat from that of facial acne. |
66.7 |
| The severity of truncal acne is proportional to the severity of facial acne. |
27.8 |
| Bacterial cultures are commonly performed to differentiate between truncal acne and bacterial folliculitis. |
5.6 |
| KOH or fungal cultures are commonly performed to differentiate between truncal acne and Malassezia (pityrosporum) folliculitis. |
33.3 |
| With sufficient medical history, including medication use, and clinical findings, it is possible to distinguish between truncal acne and acneiform rashes. |
58.3 |
| The number of cotton pads used is an important factor in evaluating the severity of truncal acne. |
38.9 |
| Currently available topical medications in Korea have limited effectiveness for treating truncal acne due to the wide range of lesions and difficulty in accessing the affected areas compared to facial acne. |
86.1 |
| The choice of medication for treating truncal acne depends on whether the main lesion is inflammatory or non-inflammatory. |
83.3 |
| Topical retinoid therapy is effective for treating mild truncal acne with mainly non-inflammatory lesions. |
80.6 |
| Topical antibiotic therapy is effective for treating mild truncal acne with mainly inflammatory lesions. |
72.2 |
| The most important indicator of treatment response for truncal acne is a decrease in the number of inflammatory lesions. |
80.6 |
| When truncal acne occurs simultaneously with facial acne, a higher cumulative dose of isotretinoin is required for treatment compared to when facial acne alone is present. |
58.3 |
| Scarring (hypertrophic, atrophic or keloid scars) is the type of acne lesion with the lowest treatment response among various truncal acne lesions. |
88.9 |
| Laser treatment is effective for post-inflammatory hyperpigmentation that occurs after truncal acne. |
33.3 |
| Topical retinoid treatment is effective for post-inflammatory hyperpigmentation that occurs after truncal acne. |
44.4 |
| It is recommended to use a whitening agent containing 4% hydroquinone for post-inflammatory hyperpigmentation after truncal acne. |
16.7 |
| The impact of truncal acne on a patient's quality of life is lower compared to facial acne. |
50.0 |
| When acne occurs on both the face and trunk, the patient’s quality of life tends to be lower compared to when acne occurs only on the face. |
77.8 |
| Current assessments of quality of life related to acne (items 1–6) are mainly focused on facial acne and do not adequately reflect the impact of truncal acne on quality of life. |
75.0 |
| The degree of scarring from truncal acne is not significantly different from that of facial acne. |
13.9 |
| The frequency of acne recurrence is higher when truncal acne is present. |
52.8 |
| The risk of post-inflammatory hyperpigmentation after truncal acne is higher compared to facial acne. |
50.0 |
| The likelihood of developing hypertrophic scars or keloids after inflammatory lesions is higher with truncal acne compared to facial acne. |
77.8 |
