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1.
Br J Dermatol ; 168(6): 1273-80, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23387396

ABSTRACT

BACKGROUND: Although sex and gender are increasingly perceived as important factors in medicine, there is only very little knowledge on these issues in patients with chronic pruritus (CP). OBJECTIVES: The aim of this retrospective study was to compare multiple parameters of CP in a large representative group of patients and to assess any sex and gender differences. METHODS: Patients (n = 1037, 54·8% women) with CP (> 6 weeks' duration) were analysed concerning gender differences in multiple parameters, including quality of life, CP-underlying diseases, co-morbidities and clinics. We used McNemar tests for dependent variables, and χ(2) tests and t-tests for independent variables, to evaluate gender-specific differences. RESULTS: Men were significantly older (P < 0·001) than women and had significantly more often cardiovascular (P < 0·001) and urogenital (P < 0·0001) co-morbidities, a higher number of co-medications (P = 0·041), and more often dermatological and systemic diseases leading to CP. Women had more neuropathic and psychosomatic diseases underlying the CP. They significantly more often showed a worsening of the CP by emotional (P = 0·002) and psychosomatic factors (P = 0·046). Women reported more often on localized itching occurring in attacks, with stinging, warmth and painful qualities (P < 0·05). Women significantly more often showed chronic scratch lesions and prurigo nodularis (P = 0·001), in contrast to men who significantly more frequently had CP on noninflamed skin (P = 0·004). In addition, women obtained higher visual analogue scale scores (P = 0·031) and reported a higher impact on quality of life (P = 0·033) than men. CONCLUSIONS: There are gender-specific differences not only in the quality, localization and triggering of CP but also in the underlying disease and scratching behaviour. These facts must be taken into account in the medical care of patients with CP and when conducting any kind of clinical research on itch. Further research is needed to achieve a gender-specific and gender-adapted diagnostics and treatment of CP.


Subject(s)
Pruritus/diagnosis , Severity of Illness Index , Aged , Chronic Disease , Female , Humans , Male , Middle Aged , Morbidity , Nervous System Diseases/diagnosis , Pruritus/psychology , Psychophysiologic Disorders/diagnosis , Quality of Life/psychology , Retrospective Studies , Risk Factors , Sex Factors
2.
J Eur Acad Dermatol Venereol ; 27(5): 550-7, 2013 May.
Article in English | MEDLINE | ID: mdl-22364653

ABSTRACT

BACKGROUND: Prurigo nodularis Hyde (PN) is a highly pruritic condition due to a vicious circle of repeated itching and scratching. There are no representative clinical studies investigating comorbidities in a large collective of PN patients. OBJECTIVE: This pilot study aimed to investigate the exact distribution of the coexisting diseases in a large representative consecutive cohort of PN patients. METHODS: A total of 108 PN patients (36.1% male; mean age of 61.5 ± 16.7 years) were enrolled in the study. RESULTS: In 87.0% of patients, diseases underlying PN could be established (18.5% skin disease, 7.4% systemic origin, 1.8% neurological diseases, 59.3% mixed origin). Due to several possible causative co-factors, the majority of patients were classified in the group of mixed origin (59.3%). In 53.1% of these patients, at least one dermatological factor was involved in the induction of PN. Interestingly, nearly half (46.3%) of all PN patients had either an atopic predisposition or atopic dermatitis as a single cause of PN (18.5%) or as one co-factor of PN of mixed origin (27.8%). Considering the different underlying diseases, there was no significant age or gender difference. CONCLUSION: PN does not seem to represent a characteristic symptom of one disease only. Multiple pruritogenic diseases are linked to evolution and improvement of PN upon treatment. Atopic predisposition is a major factor in nearly half of PN patients. The large collective of the present study helped detect a broad range of underlying diseases and thus to provide recommendations for rational diagnostics.


Subject(s)
Prurigo/etiology , Skin Diseases/complications , Aged , Cohort Studies , Female , Humans , Male , Middle Aged , Pilot Projects , Skin Diseases/classification
3.
Hautarzt ; 63(7): 558-66, 2012 Jul.
Article in German | MEDLINE | ID: mdl-22733241

ABSTRACT

As the frequency and characteristics of chronic pruritus in autoimmune dermatoses (AID) have not yet been investigated, the present study aimed at characterizing pruritus in a representative group of patients with AID. A total of 35 patients (80% women) with AID were included, divided into 3 main groups (group 1; n = 19: bullous pemphigoid (BP), pemphigus vulgaris (PV); group 2; n = 9: scleroderma (SSc), morphea (Mo); group 3; n = 7: lupus erythematosus (LE), dermatomyositis (DM). Demographic data and pruritus characteristics were obtained by standardized questionnaires and statistically evaluated by SPSS 20.0. In group 1 (BP/PV) and group 3 (LE/DM), pruritus preceded the initial diagnosis of AID (2.1 ± 7.6 years and 9.5 ± 16.0 years). Patients in group 2 (SSc/Mo) reported pruritus initially 2.8 ± 8.6 years after the initial diagnosis. In group 1 (BP/PV) significantly (p < 0.05) more excoriations and relief by scratching were observed than in groups 2 (SSc/Mo) and 3 (LE/DM). While pruritus occurred as a prodromal symptom of BP/PV and LE/DM, it was only detected once the initial diagnosis of SSc/Mo was made. In contrast to BP/PV, the other forms of AID were associated with mechanically inducible pruritus with dysesthetic qualities. All forms of AID were associated with intensive pruritus which had a significant impact on quality of life.


Subject(s)
Autoimmune Diseases/diagnosis , Autoimmune Diseases/epidemiology , Data Collection , Pruritus/diagnosis , Pruritus/epidemiology , Adult , Aged , Aged, 80 and over , Chronic Disease , Comorbidity , Female , Germany/epidemiology , Humans , Male , Middle Aged , Prevalence , Risk Factors
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