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Year : 2020  |  Volume : 12  |  Issue : 2  |  Page : 201-209

Effectiveness of color and picture labeling in improving the knowledge on topical medications among patients with psoriasis: A randomized controlled trial

1 Department of Dermatology, Hospital Pulau Pinang, Penang, Ministry of Health, Malaysia
2 Department of Pharmacy, Hospital Pulau Pinang, Penang, Ministry of Health, Malaysia
3 Clinical Research Centre, Hospital Pulau Pinang, Penang, Ministry of Health, Malaysia
4 Department of Pharmacy, Hospital Kulim, Kedah, Ministry of Health, Malaysia; School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
5 Faculty of Pharmacy, MAHSA University, Selangor, Malaysia

Correspondence Address:
Dr. Norazlima Mohd Ali
Department of Dermatology, Hospital Pulau Pinang, Ministry of Health, Pulau Pinang.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpbs.JPBS_140_19

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Aim and Objective: The success of topical treatment in patients with psoriasis is still below par in Malaysia. The contributing factors include patients’ understanding and knowledge about prescribed topical medications. The aim of this study was to assess the effectiveness of color and picture labeling (C and P labeling) in improving the knowledge about topical medications among patients with psoriasis. Materials and Methods: An unblinded randomized controlled trial was undertaken at the dermatology clinic of a tertiary care hospital. Consent from the patients fulfilling inclusion criteria were obtained, and they were included in this study. They were randomized into two groups, namely Gp-1 (C and P labeling) and Gp-2 (conventional labeling). Both groups were assessed at week 0, 6, and 12 (visit 1, 2, and 3) using knowledge assessment list and psoriasis severity assessment score. For visit 2 (week 6), reinforcement of their understanding of topical treatment was performed. Results: A total of 101 patients were recruited. Only 91 of them completed the study. The mean ages were 44.52 (±16.61) and 45.49 (±15.84) years, with 70.3% males and approximately half Malay ethnics. The changes of knowledge and comparison of Topical Application Assessment Score between the groups showed an incremental raise of significance with every visit (P = 0.006 [week 1], 0.004 [week 6], and 0.002 [week 12]). Psoriasis Area and Severity Index 75 could not draw any conclusion as patients who achieved >75% improvement were inadequate. Conclusion: C and P labeling was effective in improving the understanding and knowledge of patients with psoriasis. Both groups showed improvement in body surface area and Dermatology Life Quality Index for every visit; however, it was statistically insignificant.

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