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Increasing Prevalence of Trichophyton rubrum Identified through an Analysis of 115,846 Cases over the Last 37 Years.

Lee WJ, Kim SL, Jang YH, Lee SJ, Kim do W, Bang YJ, Jun JB - J. Korean Med. Sci. (2015)

Bottom Line: Disease was most prevalent among patients in their twenties in the 1970s and 1980s; in their thirties in the 1990s; in their forties in the 2000s; and in their fifties in the 2010s.The sex ratio was 1.5:1.Toe webs were most frequently involved, followed by toenails and groin.

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.

ABSTRACT
Trichophyton rubrum is the most common dermatophyte in the world with the highest prevalence in Korea. There are few reports about epidemiological and mycological characteristics of T. rubrum based on long-term, large-scale studies. The purpose of this study was to investigate the clinical and epidemiological characteristics of T. rubrum infections in Korea. We retrospectively investigated with patients' records about the epidemiological and mycological status of 115,846 cases with T. rubrum infection that was mycologically diagnosed at Catholic Skin Disease Clinic from 1979 to 2013. Direct microscopy in 15% KOH solution and culture was done in each case. The annual incidence of patients with T. rubrum infection had been increasing during the period; and of 131,122 patients with dermatophytosis, 115,846 patients (88.35%) had T. rubrum infection. Disease was most prevalent among patients in their twenties in the 1970s and 1980s; in their thirties in the 1990s; in their forties in the 2000s; and in their fifties in the 2010s. The sex ratio was 1.5:1. T. rubrum infection was most commonly seen in summer and was found predominantly in patients living in urban areas. Toe webs were most frequently involved, followed by toenails and groin. This epidemiologic findings provide useful information for prevention of T. rubrum infection and future dermatophytosis prospects.

No MeSH data available.


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Prevalence of T. rubrum infection in all dermatophytoses.
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Figure 2: Prevalence of T. rubrum infection in all dermatophytoses.

Mentions: The annual incidence of T. rubrum infection ranged from 1,436 to 5,565 patients between 1979 and 2013 (Fig. 1). The mean annual incidence of T. rubrum infections was 3,310 patients. The incidence was the lowest in 1986 and the highest in 2002. The prevalence of T. rubrum infection increased from 1979 to 2013. Out of 131,122 patients with dermatophytoses during the study period, 115,846 patients (88.35%) had a T. rubrum infection. The proportion of T. rubrum among dermatophytes was the lowest in 1979 (70.39%) and highest in 2013 (94.28%) (Fig. 2). T. rubrum has been the prevailing cause of dermatophytoses, constituting more than 90% of dermatophytoses since 1991.


Increasing Prevalence of Trichophyton rubrum Identified through an Analysis of 115,846 Cases over the Last 37 Years.

Lee WJ, Kim SL, Jang YH, Lee SJ, Kim do W, Bang YJ, Jun JB - J. Korean Med. Sci. (2015)

Prevalence of T. rubrum infection in all dermatophytoses.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4414650&req=5

Figure 2: Prevalence of T. rubrum infection in all dermatophytoses.
Mentions: The annual incidence of T. rubrum infection ranged from 1,436 to 5,565 patients between 1979 and 2013 (Fig. 1). The mean annual incidence of T. rubrum infections was 3,310 patients. The incidence was the lowest in 1986 and the highest in 2002. The prevalence of T. rubrum infection increased from 1979 to 2013. Out of 131,122 patients with dermatophytoses during the study period, 115,846 patients (88.35%) had a T. rubrum infection. The proportion of T. rubrum among dermatophytes was the lowest in 1979 (70.39%) and highest in 2013 (94.28%) (Fig. 2). T. rubrum has been the prevailing cause of dermatophytoses, constituting more than 90% of dermatophytoses since 1991.

Bottom Line: Disease was most prevalent among patients in their twenties in the 1970s and 1980s; in their thirties in the 1990s; in their forties in the 2000s; and in their fifties in the 2010s.The sex ratio was 1.5:1.Toe webs were most frequently involved, followed by toenails and groin.

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.

ABSTRACT
Trichophyton rubrum is the most common dermatophyte in the world with the highest prevalence in Korea. There are few reports about epidemiological and mycological characteristics of T. rubrum based on long-term, large-scale studies. The purpose of this study was to investigate the clinical and epidemiological characteristics of T. rubrum infections in Korea. We retrospectively investigated with patients' records about the epidemiological and mycological status of 115,846 cases with T. rubrum infection that was mycologically diagnosed at Catholic Skin Disease Clinic from 1979 to 2013. Direct microscopy in 15% KOH solution and culture was done in each case. The annual incidence of patients with T. rubrum infection had been increasing during the period; and of 131,122 patients with dermatophytosis, 115,846 patients (88.35%) had T. rubrum infection. Disease was most prevalent among patients in their twenties in the 1970s and 1980s; in their thirties in the 1990s; in their forties in the 2000s; and in their fifties in the 2010s. The sex ratio was 1.5:1. T. rubrum infection was most commonly seen in summer and was found predominantly in patients living in urban areas. Toe webs were most frequently involved, followed by toenails and groin. This epidemiologic findings provide useful information for prevention of T. rubrum infection and future dermatophytosis prospects.

No MeSH data available.


Related in: MedlinePlus