Different outdoor professions have different risks - a cross-sectional study comparing non-melanoma skin cancer risk among farmers, gardeners and mountain guides

Exposome and basal cell carcinoma: a multicenter case-control study

BACKGROUND

While ultraviolet radiation (UVR) present in sunlight is recognized as the main etiological agent of skin cancer, the most frequent form of which is basal cell carcinoma (BCC), other exposome factors like pollution, diet, and lifestyle may also contribute. This study aimed to investigate the association of BCC and exposome-related factors in the Spanish population.

METHODS

BCC cases (n = 119) and controls (n = 127) with no history of skin cancer were recruited between April 2020 and August 2022 by 13 dermatologists throughout Spain in this prospective multicenter case-control study.

RESULTS

The BCC group had a higher proportion of outdoor workers, more years of UVR exposure, and a greater consumption of drugs (statins, ASA, hydrochlorothiazide, ACE inhibitors and omeprazole), P < 0.05. Avoidance of sun exposure was the most used photoprotection measure in both groups. The use of hats or caps was higher in the BCC group (P = 0.01). The solar protection factor (SPF) used 15 years previously was higher in the control group (P = 0.04). The control group had a higher daily screen time (P < 0.001), and practiced more relaxation activities (P = 0.03). Higher linolenic acid intake and lower coffee consumption were the only dietary variables associated with BCC (P < 0.05). Statistical significance for all the aforementioned variables was maintained in the multivariate analysis (P < 0.05).

CONCLUSIONS

The study found a significant association between BCC and multiple exposome-related factors in addition to chronic sun exposure in the Spanish population. Primary prevention strategies should target specific populations, such as outdoor workers, promoting sun-safe behaviors and stress-reducing activities, and also adequate skin photoprotection in patients on certain medications associated with increased BCC risk.

'Being a farmer, I mostly always think there is something more important to do': A mixed methods analysis of the skin cancer detection practices of Australian farmers

ISSUE ADDRESSED

Farmers experience skin cancer and die from melanoma at significantly higher rates than the general Australian population. This study examined Australian farmers' engagement with self-skin examinations (SSE), participation in clinical skin examinations (CSE) by a health professional, and self-reported barriers to engagement with these important skin cancer detection practices.

METHODS

A cross-sectional, mixed-methods design was used. Australian farmers were recruited through an industry-based organisation representing livestock farmers. Farmers (N = 498; 22-89 years; 83.1% male) responded to a paper-based survey that included closed- and open-ended questions.

RESULTS

Farmers reported engagement with self-conducted SSE and routine CSE that was comparable to findings in the general population, but 29.4% of farmers reported that they had not sought a CSE as soon as possible after noticing changes to their skin. Farmers reported a range of barriers to SSE, including physical difficulties examining their skin, difficulties identifying changes in their skin, forgetfulness, and lack of motivation. Barriers to CSE included accessibility, cost, difficulties finding the right doctor, and avoidance and complacency.

CONCLUSIONS

There is a need to make clinical skin cancer detection more accessible to farmers, in addition to promoting self-skin examination and help-seeking behaviours within this at risk population. SO WHAT?: Novel approaches are needed to address systemic barriers faced by Australian farmers. These may include the use of teledermatology or artificial intelligence to assist with CSE. Remote training delivery methods may be also utilised to teach SSE skills to farmers who may be otherwise unable to access such opportunities.

Global burden and prediction study of cutaneous squamous cell carcinoma from 1990 to 2030: A systematic analysis and comparison with China

Background

China has the highest number of new cancer cases and deaths globally. Due to particularly low scores in health care quality for cutaneous squamous cell carcinoma (cSCC), the country's cSCC burden requires greater awareness. Consequently, we aimed to evaluate and predict the trend of the cSCC burden globally and in China from 1990 to 2030.

Methods

We retrieved data from the Global Burden of Disease 2019 study, which provided estimates of the incidence, mortality, prevalence, and disability-adjusted life years (DALYs) of cSCC from 1990 to 2019. We set up joint-point analyses and Bayesian age-period-cohort (BAPC) models to predict the disease burden of cSCC up to 2030.

Results

In 2019, China reported age-standardised rates of cSCC prevalence, incidence, mortality, and DALYs of 2.54, 2.12, 0.88, and 16.76 per 100 000 population, respectively. The country's prevalence and incidence rates from 1990 to 2019 were lower than the global levels, but its mortality and DALY rates were higher. The age-standardised rates were higher for males, and the disease burden increased with each age group globally and in China. Moreover, the average annual percentage change showed all indicators were growing faster than the global levels. According to the BAPC model, there will be an upward trend in the prevalence and incidence globally and in China between 2020 and 2030, with a decrease in mortality and DALYs.

Conclusions

We observed an upward trend in the cSCC burden over the past 30 years in China. Prevalence and incidence are expected to continue at a higher rate than the global average in the next decade, while mortality and DALYs are predicted to decrease. As the Chinese population ages, efforts toward managing and preventing cSCC should be targeted towards the elderly population.

Sonnenschutz bei Beschäftigten im Freien. Entwicklung und Validierung von standardisierten Fragebögen für Verhalten und Wissen

BACKGROUND AND OBJECTIVES

Outdoor workers are at increased risk of developing non-melanoma skin cancer. We aimed to address the lack of validated German-language measurement instruments for outdoor workers' sun safety behavior and knowledge by compiling and validating two questionnaires.

PARTICIPANTS AND METHODS

By expert consensus, items for the assessment of protective behavior (OccuSun) were compiled based on existing instruments. For knowledge, a translation of the Skin Cancer and Sun Knowledge (SCSK) scale was selected. After a pre-test, a validation study including 68 outdoor workers (62% female) was conducted in 2020.

RESULTS

The retest reliability was r = 0.93 (95% confidence interval: 0.86-0.96) for the protection score and rs = 0.78 (0.67-0.86) for the knowledge score. Protective behaviors were correlated with respective diary data (0.38 ≤ rs ≤ 0.74, p < 0.001) and skin pigmentation changes (-0.23 ≥ rs ≥ -0.42, 0.007 ≤ p ≤ 0.165) but not with self-reported sunburn frequency (0.21 ≥ rs ≥ -0.04).

CONCLUSIONS

Among German outdoor workers, two questionnaires for the assessment of sun protection behavior (OccuSun) and knowledge (SCSK) demonstrated good reliability. The OccuSun had generally good validity. Both instruments are fit for subsequent validation to determine their sensitivity to change.

Sun protection in outdoor workers - Development and validation of standardized questionnaires for behavior and knowledge

BACKGROUND AND OBJECTIVES

Outdoor workers are at increased risk of developing non-melanoma skin cancer. We aimed to address the lack of validated German-language measurement instruments for outdoor workers' sun safety behavior and knowledge by compiling and validating two questionnaires.

PARTICIPANTS AND METHODS

By expert consensus, items for the assessment of protective behavior (OccuSun) were compiled based on existing instruments. For knowledge, a translation of the Skin Cancer and Sun Knowledge (SCSK) scale was selected. After a pre-test, a validation study including 68 outdoor workers (62% female) was conducted in 2020.

RESULTS

The retest reliability was r = 0.93 (95% confidence interval: 0.86-0.96) for the protection score and rs = 0.78 (0.67-0.86) for the knowledge score. Protective behaviors were correlated with respective diary data (0.38 ≤ rs ≤ 0.74, p < 0.001) and skin pigmentation changes (-0.23 ≥ rs ≥ -0.42, 0.007 ≤ p ≤ 0.165) but not with self-reported sunburn frequency (0.21 ≥ rs ≥ -0.04).

CONCLUSIONS

Among German outdoor workers, two questionnaires for the assessment of sun protection behavior (OccuSun) and knowledge (SCSK) demonstrated good reliability. The OccuSun had generally good validity. Both instruments are fit for subsequent validation to determine their sensitivity to change.

New trends on personalized sunscreens

BACKGROUND/PURPOSE

Nowadays, there are emerging trends in customized and personalized photoprotection, focusing on the innovative approaches to enhance sun protection efficacy tailored to individual needs.

METHODS

We conducted an electronic search of the following databases: MEDLINE, EMBASE, Cochrane Database of Systematic Reviews, Cochrane Skin Group Specialised Skin Register, and TESEO. Specific search terms related to personalized photoprotection and the variables of age, genetic predisposition, skin phototype, photodermatosis, and physiological conditions such as pregnancy, as well as lifestyle habits were used.

RESULTS/CONCLUSION

The article highlights the challenges and opportunities in adopting personalized photoprotection strategies, aiming to promote skin health and prevent the harmful effects of UV radiation in the era of precision medicine.

Solar ultraviolet radiation exposure in workers with outdoor occupations: a systematic review and call to action

Chronic solar ultraviolet radiation (sUVR) exposure leads to an increased incidence of non-melanoma skin cancer (NMSC) development, particularly when accumulated over decades. Workers in certain industries, such as construction, agriculture, postal workers, and the military, are at higher risk due to cumulative sUVR exposure in their line of work. By assessing the relationship between sUVR exposure in outdoor workers and their skin cancer risk and defining methods of prevention, clinicians can offer focused sun protection counseling to this unique population. PubMed was used to perform a literature review to address the following research questions: 1. How is ultraviolet radiation measured? 2. What is the modern utility of the ultraviolet index in modifying sun protection behaviors in outdoor industry workers? 3. What is the risk of non-melanoma skin cancer development in individuals working in outdoor occupations? 4. What is the prevalence of skin cancer among outdoor workers? 5. Is the number of nevi and solar lentigines elevated among individuals employed in outdoor occupations? The literature suggests that individuals in outdoor occupations are exposed to UV levels that often surpass safety limits for occupational UVR exposure, increasing their risk of developing skin cancer and precursor and pigmented lesions. Individuals in high-risk occupations experience significantly higher levels of sUVR exposure than their indoor worker counterparts, increasing their risk of malignant cutaneous transformation. Accordingly, these individuals must be counseled on effective solar protection methods, and employers should advocate for actionable change.

Occupational solar exposure and basal cell carcinoma. A review of the epidemiologic literature with meta-analysis focusing on particular methodological aspects

BACKGROUND

Numerous epidemiologic studies and a few systematic reviews have investigated the association between occupational solar exposure and basal cell carcinoma (BCC). However, previous reviews have several deficits with regard to included and excluded studies/risk estimates and the assessment of risk of selection bias (RoSB). Our aim was to review epidemiologic studies with a focus on these deficits and to use meta-(regression) analyses to summarize risk estimates.

METHODS

We systematically searched PubMed (including MEDLINE) and Embase for epidemiologic studies. Study evaluation considered four main aspects of risk of bias assessments, i.e. Selection of subjects (selection bias); Exposure variables; Outcome variables; Data analysis.

RESULTS

Of 56 identified references, 32 were used for meta-(regression) analyses. The overall pooled risk estimate for BCC comparing high/present vs. low/absent occupational solar exposure was 1.20 (95% CI 1.02-1.43); among studies without major deficits regarding data analysis, it was 1.10 (95% CI 0.91-1.33). Studies with low and high RoSB had pooled risk estimates of 0.83 (95% CI 0.73-0.93) and 1.95 (95% CI 1.42-2.67), respectively. The definitions of exposure and outcome variables were not correlated with study risk estimates. Studies with low RoSB in populations with the same latitude or lower than Germany had a pooled risk estimate of 1.01 (95% CI 0.88-1.15).

CONCLUSION

Due to the different associations between occupational solar exposure and BCC among studies with low and high RoSB, we reason that the current epidemiologic evidence base does not permit the conclusion that regular outdoor workers have an increased risk of BCC.

The Influence of the Exposome in the Cutaneous Squamous Cell Carcinoma, a Multicenter Case-Control Study

INTRODUCTION

The concept of exposome refers to the total of harmful and beneficial environmental exposures that can help predict the organism's biological responses over time. Ultraviolet radiation (UVR) from sun exposure has been recognized as the main etiological agent of skin cancer, and squamous cell carcinoma (SCC) is one most commonly associated with chronic exposure. However, in recent years, evidence suggests that lifestyle, environmental pollution, and contaminants in water and food can have an influence.

OBJECTIVES

To study the relationship between SCC and sun exposure, pollution, stress, and lifestyle in a Spanish cohort.

MATERIALS AND METHOD

A multicenter case-control study was carried out in which 13 dermatologists from different regions of Spain recruited cases and controls between April 2020 and August 2022. The group of cases were patients diagnosed with SCC and, as a control group, people who attended Dermatology consultations as companions with no history of skin cancer.

RESULTS

A total of 62 patients with SCC and 126 controls were included (62.9% males, median age 76.46 (10.1) and 33.3%, median age 55.7 (15), respectively). The SCC group had experienced more outside work than the controls (75% vs. 22.4%, p < 0.001), less recreational exposure (sunbathing, p = 0.05, and outdoor sports, p = 0.01), and a lower annual income (p = 0.01), with an increase in tobacco exposure (p < 0.001), without differences in other carcinogens, such as ionizing radiation or chemical exposure. The control group had a higher daily screentime use (p < 0.001) and practiced more relaxation activities (p = 0.03). A higher linolenic acid intake and lower coffee consumption were the only dietary variables associated with SCC (p < 0.05). Some chronic medications (anxiolytics, antidepressants, beta-blockers, statins, hydrochlorothiazide, ACE inhibitors, metformin, and omeprazole) were also statistically associated with SCC. Statistical significance for all aforementioned variables was maintained in the multivariate analysis (p < 0.05).

CONCLUSIONS

The study found a significant association between SCC and multiple exposome-related factors in addition to chronic sun exposure in the Spanish population. Primary prevention strategies should target specific populations, such as outdoor workers promoting sun-safe behaviors and stress-reducing activities, in addition to adequate skin photoprotection in patients under certain medications associated with SCC.

"She'll Be Right, Mate": A Mixed Methods Analysis of Skin Cancer Prevention Practices among Australian Farmers-An At-Risk Group

This study examined Australian farmers’ engagement with skin cancer prevention behaviours and explored what made it hard for them to be ‘SunSmart’ (barriers), and what could be done to make prevention easier (facilitators). In total, 498 farmers (83.1% male, 22–89 years, 50.8% grain, sheep, or cattle farmers) participated. The least frequently performed SunSmart behaviours (reported as never practiced during summer) were using SPF 30+ sunscreen (16.6%), wearing protective sunglasses (10.5%), and wearing protective clothing (8.6%). Greater engagement (i.e., higher scores on scale from Never to Always) with SunSmart behaviours was explained by gender (female), educational attainment (trade or technical college certificate vs. high school), personal skin cancer history, and skin sun sensitivity. Barriers reported by farmers related to personal preferences (e.g., short-sleeved rather than long-sleeved clothing), comfort, and perceived impracticality of sun protection. Farmers’ solutions included making protective clothing and sunscreen more appropriate for farm work (e.g., by making clothing more breathable). A personal health scare was the most reported motivation for skin cancer prevention. Findings highlight the need for increased access to sun-protective clothing and sunscreen that is suitable for wearing when working on farms, complemented by culturally appropriate health education messaging, to encourage more farmers to perform SunSmart behaviours.

Update aktinische Keratosen – Neuigkeiten und Relevanz für den Alltag

Ziel der Arbeit Die im März 2020 zuletzt überarbeitete Leitlinie „Aktinische Keratosen und Plattenepithelkarzinome der Haut“ hat aufgrund der Zunahme der klinischen Studien zum Thema aktinische Keratosen den höchsten Grad für Methodik (S3) erreicht, da diese nicht nur konsensbasiert sondern auch evidenzbasiert verfasst wurde. Diesen Entwicklungen gerecht zu werden und den klinisch relevanten Teil des aktuellen Stands des Wissens zu vermitteln, ist Ziel dieses Artikels.

Methodik Anhand der aktuellen epidemiologischen Lage wird der dramatisch wachsende Bedarf für das bessere Verständnis der Ätiologie aktinischer Keratosen deutlich. Ebenso gilt es, Patienten mit aktinischen Keratosen und therapiebedürftigen Ko-Morbiditäten vor einem therapiebedingten, erhöhten Risiko für die Entwicklung weiterer aktinischer Keratosen oder Plattenepithelkarzinomen zu bewahren. Die Möglichkeit der Spontanremission aktinischer Keratosen sollte ebenso wenig vernachlässigt werden wie eine mögliche Progredienz in ein Plattenepithelkarzinom. Die kontroverse Diskussion der fortwährend postulierten, sequenziellen Abfolge der histologischen Grade aktinischer Keratosen zum Plattenepithelkarzinom beinhaltet klinische und histologische Fallstricke. Diese sollten bei der Therapieentscheidung ebenso bedacht werden wie die Wünsche und Erwartungen der Patienten an ein Therapieregime. Eine bleibende Schwierigkeit ist die fehlende Standardisierung erhobener Daten zu den zahlreichen zur Verfügung stehenden Therapieoptionen. Das Potenzial dieses Forschungsgebietes für neue Therapiealternativen und präventive Maßnahmen lässt nach wie vor auf weitere, interessante Entwicklungen hoffen.

Ergebnisse Der gut etablierte kausale Zusammenhang zwischen kumulativer UV-Strahlung in der Entwicklung von Plattenepithelkarzinomen und aktinischer Keratosen hat zur Anerkennung berufsbedingter UV-Exposition als Berufserkrankung geführt, die auch die Anerkennung multipler aktinischer Keratosen als Berufserkrankung beinhaltet. Das therapeutische Handeln sollte durch die Gesamtanzahl der aktinischen Keratosen, das Ausmaß der betroffenen Fläche, die Dynamik des Krankheitsgeschehens und den Wunsch des Patienten bestimmt werden. Ein besonderes Augenmerk sollte auf den Patienten liegen, denen die Krankheitseinsicht fehlt oder die nur wenig motiviert zur Therapie sind. Es könnte der Schlüssel zur Verbesserung der Therapieadhärenz und Akzeptanz sein, diese Patienten zu erkennen und ihre Bedürfnisse in das Arzt-Patienten-Gespräch zu integrieren. Die Differenzierung zwischen lokalisierten aktinischen Keratosen und einer Feldkanzerisierung stellt ein wichtiges Entscheidungskriterium für die Wahl der empfohlenen Therapie dar. Die Rücknahme der Zulassung von Ingenolmebutat in der EU durch die EMA im Jahr 2020 hat das Spektrum der lokaltherapeutischen Optionen eingeschränkt. Der periinterventionelle Schmerz ist nach wie vor der limitierende Faktor für die konventionelle photodynamische Therapie, jedoch schreitet die Entwicklung für schmerzärmere Varianten weiter voran. Es ist zu erwarten, dass sich in den kommenden Jahren durch eine bessere Evidenzlage für weitere systemische oder lokaltherapeutische Optionen neue Behandlungsstrategien ergeben werden. Besonders im Fokus wird sicherlich nach wie vor die Präventionsforschung stehen, die v. a. den Erhalt einer erzielten Remission beinhaltet.

Schlussfolgerung Die aktuellen Forschungsergebnisse und -bestrebungen zur Thematik der aktinischen Keratosen sind aufgrund des zukünftig gesteigerten Bedarfes zum einen notwendig und zum anderen sehr ermutigend. Das Ende des therapeutischen Horizonts ist gegenwärtig noch nicht erreicht.

Recent Malignant Melanoma Epidemiology in Upper Silesia, Poland. A Decade-Long Study Focusing on the Agricultural Sector

The aim of the present study was to create spatial and spatio-temporal patterns of cutaneous malignant melanoma (MM) incidence in Upper Silesia, Poland, using the largest MM database (<4K cases) in Central Europe, focusing on the agricultural sector. The data comprised all the registered cancer cases (C43, according to the International Classification of Diseases after the 10th Revision) between the years 2004-2013 by the Regional Cancer Registries (RCRs) in Opole and Gliwice. The standardized incidence ratios (SIRs), spatio-temporal growth rates (GRs), and disease cluster relative risks (RRs) were estimated. Based on the regression coefficients, we have indicated irregularities of spatial variance in cutaneous malignant melanoma, especially in older women (≥60), and a possible age-migrating effect of agricultural population density on the risk of malignant melanoma in Upper Silesia. All the estimates were illustrated in choropleth thematic maps.

Determinants of Sailors' Protective Behaviors in Fishing Spots against the Risks of Sunlight and Skin Cancer: A Qualitative Study in Iran

Introduction

The growing rate of nonmelanoma skin cancer (NMSC) and melanoma has been a great challenge for global health system. The present research aims to determine sailors' protective behaviors against the risks of sunlight and skin cancer in Iran.

Materials and Methods

The present research was qualitative in type, and its data were collected from August to December 2019. To this aim, 23 participants were recruited with whom semistructured interviews were held. The data collection continued until data saturation, and the interviews were coded in MAXQDA 10. Conventional content analysis was used to analyze the qualitative data.

Results

Analysis of sailors' perceptions and experiences revealed 7 categories: protective behaviors, hard personal and familial conditions, social interactions, poor social support, feeling of satisfaction, self-care, and fear.

Conclusion

Sailors are prone to skin cancer due to their specific work conditions. Perceptions and determinants of skin cancer and protective behaviors against sunlight were identified among sailors. Promotion of protective behaviors and beliefs that impeded preventive behaviors are among issues that require special attention.

Educating outdoor workers using tailored and financial messages to encourage safe-sun behaviors

Excessive and unsafe sun exposure represents a concerning hazard to the health of individuals. Of particular interest are those who are most susceptible to sun exposure, such as outdoor workers. The current study used a 3 × 2 between-subjects design to investigate the effectiveness of messages that varied the extent of personalization (i.e. generic message; occupation targeted message; individual tailored message) and the inclusion of content regarding financial consequences of skin cancer. Participants (N = 304) were recruited from the USA through Amazon's Mechanical Turk and randomly assigned to view a generic message, occupation targeted message, or individual tailored message. Additionally, participants were randomly assigned to view messages in which financial information was either present or not. Participants responded to questions assessing pre- and post-test sun protection behaviors. Individual tailored messaging was as effective as occupation targeted messaging, with both being more effective than generic messaging. This finding indicates that some degree of personalization is necessary when promoting safe-sun practices to outdoor workers, but that tailoring to individuals may not always be necessary. Inclusion of financial content in messaging resulted in greater intentions to practice sun protection behaviors. Results provide insight into effective methods for promoting sun protection.

Development of Two Types of Skin Cancer in a Patient with Systemic Sclerosis: a Case Report and Overview of the Literature

Systemic sclerosis (SSc) is an uncommon rheumatic disease in which the underlying main histopathologic feature is a thickening of the skin due to excessive accumulation of collagen in the extracellular tissue. Fibrogenesis, chronic inflammation, and ulceration may eventually promote skin neoplasms. Although nonmelanoma skin cancer (NMSC) is the most frequent type, there have been restricted case reports and case series with skin cancers in SSc patients in the literature. Herein, we describe a 78-year-old woman diagnosed with diffuse cutaneous systemic sclerosis thirteen years ago and associated nonspecific interstitial pneumonia that was successfully treated with high cumulative doses of cyclophosphamide. She developed basal cell carcinoma and squamous cell carcinoma of the skin in the follow-up. She is still on rituximab treatment with stable interstitial lung disease as indicated by pulmonary function tests and high-resolution chest computed tomography. To our knowledge and a literature search, this is the first reported patient with SSc with two types of skin cancer. In this review, we also aimed to emphasize the relationship between SSc and skin cancer, and possible risk factors for SSc-related skin cancer.

Occupational exposures and health-related quality of life in the Manaus Metropolitan Region, Amazonas State, Brazil: a cross-sectional study

We aimed to investigate the association between occupational exposures and health-related quality of life among both informal and formal workers in the Brazilian Amazon. We conducted a cross-sectional study with working adults in the Manaus Metropolitan Region, Amazonas State, in 2015. Participants were selected through a three-step probabilistic sampling. The primary outcome was the health-related quality of life indicator, measured by the Brazilian validated version of the European Quality of Life 5-Dimensions 3-Levels (EQ-5D-3L) tool. Adjusted multivariate analysis was performed by Tobit regression and considered the complex sampling design. Results were converted to odds ratio (OR). Out of the 1,910 working individuals from the sample, 60.2% were formal workers. Informal workers were significantly more exposed to occupational risks than formal workers (p ≤ 0.05). Mean utility score for informal and formal workers was 0.886 (95%CI: 0.881; 0.890). Quality of life of informal workers was negatively impacted by exposure to noise (OR = 1.28; 95%CI: 1.13; 1.52), occupational stress (OR = 1.95; 95%CI: 1.65; 2.21), and industrial dust (OR = 1.46; 95%CI: 1.28; 1.72), while formal workers were negatively associated with exposure to chemical substances (OR = 1.58; 95%CI: 1.28; 1.87), noise (OR = 1.40; 95%CI: 1.23; 1.65), sun (OR = 1.65; 95%CI: 1.09; 1.40), occupational stress (OR = 1.65; 95%CI: 1.46; 1.87), biological material (OR = 2.61; 95%CI: 1.72; 3.97), and industrial dust (OR = 1.46; 95%CI: 1.28; 1.65). Exposure to occupational risks among workers from the Manaus Metropolitan Region was high, affecting both informal and formal workers. Brazilian policies need to be enforced to reduce the impacts on quality of life among workers in this region.

Determining Skin Cancer Protective Behaviors in the Light of the Protection Motivation Theory among Sailors in Bandar-Bushehr in the South of Iran

Background:

Skin cancer is among the most prevalent cancers in Iran and worldwide. Due to the nature of work, sailors are constantly exposed to the ultraviolet rays of the sun, which in the long run damages their skin and raises the chances of skin cancer. Thus, the present research aimed to predict the skin cancer protective behaviors among sailors in the south of Iran in the light of the protection motivation theory.

Materials and Methods:

The present analytical, cross-sectional research was conducted on 360 sailors in Bandar-Bushehr selected randomly from 4 border healthcare centers. To collect the required data, a reliable and valid questionnaire based on the protection motivation theory was used. The data were analyzed in SPSS21 using descriptive and inferential statistics including Pearson correlation coefficient and linear regression analysis.

Results:

Pearson correlation coefficient showed a statistically significant positive correlation between protection motivation, perceived severity, fear, reward on the one hand and a statistically significant negative correlation between protection motivation and rewards and response costs. All constructs of protection motivation explained 43% of the variance of skin cancer protective behaviors. Among the influential predictors, perceived self-efficacy showed to be the strongest (β=0.328).

Conclusion:

Considering the effectiveness of the protection motivation theory in determining skin cancer preventive behaviors among sailors, it can be concluded that this theory can be used as a framework in planning health education and promotion programs to motivate sailors to adopt more skin cancer protective behaviors.

Keratinocyte skin cancer risks for working school teachers: Scenarios and implications of the timing of scheduled duty periods in Queensland, Australia

Relative keratinocyte skin cancer risks attributable to lifetime occupational and casual sunlight exposures of working school teachers are assessed across the state of Queensland for 1578 schools. Relative risk modeling utilizing annual ultraviolet exposure assessments of teachers working in different geographic locations and exposed during periods of measured daily playground duty times for each school were made for local administrative education districts by considering traditional school opening and closing hours, and playground lunchtime schedules. State-wide, basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) relative risk estimates varied by 24% for BCC and 45% for SCC. The highest relative risk was calculated for the state's north (sunshine) coast education district which showed that risk could increase by as much as 32% for BCC and 64% for SCC due to differences in teacher duty schedules. These results highlight the importance of playground duty scheduling as a significant risk factor contributing to the overall burden of preventable keratinocyte skin cancers in Queensland.

Design and baseline data of a randomized trial comparing two methods for scaling-up an occupational sun protection intervention

Background

Successful methods for scaling-up evidence-based programs are needed to prevent skin cancer among adults who work outdoors in the sun.

Methods

A randomized trial is being conducted comparing two methods of scaling-up the Sun Safe Workplaces (SSW) intervention. Departments of transportation (DOTs) from 21 U.S. states are participating and their 138 regional districts were randomized following baseline assessment. In districts assigned to the in-person method (n = 46), project staff meets personally with managers, conducts trainings for employees, and provides printed materials. In districts assigned to the digital method (n = 92), project staff conduct these same activities virtually, using conferencing technology, online training, and electronic materials. Delivery of SSW in both groups was tailored to managers' readiness to adopt occupational sun safety. Posttesting will assess manager's support for and use of SSW and employees' sun safety. An economic evaluation will explore whether the method that uses digital technology results in lower implementation of SSW but is more cost-effective relative to the in-person method.

Results

The state DOTs range in size from 997 to 18,415 employees. At baseline, 1113 managers (49.0%) completed the pretest (91.5% male, 91.1% white, 19.77 years on the job, 66.5% worked outdoors; and 24.4% had high-risk skin types). They were generally supportive of occupational sun safety. A minority reported that the employer had a written policy, half reported training, and two-thirds, messaging on sun protection.

Conclusions

Digital methods are available that may make scale-up of SSW cost-effective in a national distribution to nearly half of the state DOTs.

Trial registration: The ClinicalTrials.gov registration number is NCT03278340.

[Effects of an unconventional skin cancer prevention campaign : Impacts on the sun protection behavior of outdoor workers]

BACKGROUND

The disease burden of actinic keratoses and keratinocyte carcinoma can be reduced by primary and secondary prevention. However, these measures are often poorly received, especially among the high-risk group of outdoor workers.

OBJECTIVES

The aim of this follow-up study was to investigate whether an improvement in sun protection and awareness of skin changes could be observed among the study population, especially outdoor workers, one year after a prevention campaign focusing on this topic.

MATERIALS AND METHODS

In 2017, all participants who initially participated in a study at the Bavarian Central Agricultural Festival 2016 and agreed to participate in the follow-up study were contacted by mail and received the same questionnaire and evaluation questions regarding possible behavioral changes.

RESULTS

A total of 400 people took part in the follow-up study (response rate 52.8%). Of the 240 outdoor workers, 45.0% said they were more conscious of protecting themselves from the sun and 68.8% said they were more aware of skin changes. About 85.0% of outdoor workers indicated that they would consult a dermatologist earlier and 65.8% desired further prevention campaigns regarding skin cancer and sun protection.

CONCLUSION

Overall, the majority of participants reported that they had improved sun protection behavior and awareness of skin changes after the intervention. Based on the participants' self-disclosure, especially outdoor workers tended to use sun protection measure more frequently. These findings underline the importance of target group-oriented awareness and prevention campaigns to reduce the burden of skin cancer.

Skin cancer risk and shade: comparing the risk of foresters with other outdoor workers

BACKGROUND

Keratinocyte carcinoma (KC) is an increasingly important public health problem with an especially high prevalence in outdoor workers. In contrast to other occupations, foresters spend most of their outdoor time under the shade of trees.

OBJECTIVES

We aimed to compare the unique sun exposure patterns and sun protection behaviour of foresters with those of other outdoor workers and their relation to the KC risk.

METHODS

In July 2018, a cross-sectional study was conducted at an international forestry fair using a questionnaire about health awareness and skin cancer screening by dermatologists to assess the prevalence of KC.

RESULTS

A total of 591 participants (78.7% male; mean age 46.8 ± 16.2 years) including 193 foresters were enrolled. Of all foresters, 72% experienced sunburns (solar erythema) within the past year and 50% of them experienced the worst sunburn during work. Foresters were most likely to often/always wear protective clothes (29.0%) but were least likely to often/always avoid midday sun (23.8%) and stay in the shade (31.1%). Having an outdoor profession or spending hours outside for leisure was negatively associated with sun protection. Skin examination revealed an overall KC prevalence of 16.7%, with 16.5% of foresters being affected.

CONCLUSION

Despite being protected by trees, the risk of KC for foresters is comparable to that of other professional groups. Shade alone may not provide sufficient protection. Additional sun protection measures are necessary.

Non-Melanoma Skin Cancer in Outdoor Workers: A Study on Actinic Keratosis in Italian Navy Personnel

Occupational exposure to ultraviolet radiation is one of the main risk factors for non-melanoma skin cancer (NMSC) development. The most common variants of NMSC are basal cell carcinomas, squamous cell carcinomas, and actinic keratosis (AK). The latter is nowadays considered by most authors as an early squamous cell carcinoma rather than a precancerous lesion. Outdoor workers have a higher risk of developing NMSC because they spend most of the working day outside. The aim of this descriptive study was to assess the prevalence of skin lesions, especially AK, in a professional category of individuals exposed to ultraviolet (UV) radiation: the Italian Navy. From January to June 2016, a questionnaire and a total skin examination of 921 military personnel were administered by medical specialists (dermatologists) in seven different Italian Navy centres. AK was detected in 217 of 921 (23.5%) workers. Older age, outdoor occupation, longer working life, and fair skin seem to promote the development of AK. Of the 217 workers with AK, 187 (86.2%) had lesions in chronically sun-exposed skin areas. Italian Navy personnel have a high AK prevalence. Further studies are needed to investigate occupational hazards and their health effects among outdoor workers to promote protective behaviour and raise awareness of skin cancer.

[Primary and secondary prevention of skin cancer in rural areas : A cross-sectional study in the Bavarian Forest]

BACKGROUND

Skin cancer is the most common malignancy of the fair-skinned population worldwide. To reduce skin cancer's burden primary and secondary prevention are critical. However, various studies indicate an inadequate prevention behavior among rural populations.

OBJECTIVE

To examine the risk and prevention behavior with respect to skin cancer and to identify subgroups in rural areas with specific need for prevention efforts.

MATERIALS AND METHODS

In a cross-sectional study carried out in the first quarter of 2017, patients and their accompanying persons (≥18 years) were interviewed on the subject of primary and secondary prevention in waiting rooms of nondermatological medical practices in the Bavarian Forest, Germany. Data were collected using paper-based questionnaires. Associations were calculated using logistic regression models.

RESULTS

In all, 880 persons (57.7% women, mean age = 49.5 years) were included in the analysis, of whom 53.6% had undergone a skin cancer screening at least once before. Sunscreen was the most frequently used sun protection measure. Male sex and being 18-34 years of age were significantly associated with not using prevention measures (depending on the measure: odds ratio [OR]: 1.4-2.4 and 1.8-3.7, respectively). In addition, not using skin cancer screening was associated with UV exposure more than 6 h daily in summer (OR: 1.8, 95%-CI [confidence interval]: 1.14-2.97).

CONCLUSION

Future prevention strategies should increasingly focus on young adults, on men and people with high solar UV exposition particularly, to reduce the burden of skin cancer in rural areas.

Skin Cancer Prevalence in Outdoor Workers of Ski Resorts

BACKGROUND

Snow reflectivity and altitude increase the exposure of ski resort workers to solar ultraviolet radiation. The aim was to assess the presence of skin cancer in ski resorts workers and compare it with other groups of outdoor workers reviewing published studies.

METHODS

An observational cross-sectional prospective study was conducted in the three largest ski resorts in Spain: Baqueira Beret, Lleida; Formigal, Huesca and Sierra Nevada, Granada. All outdoor workers including ski instructors were invited to participate in the study. The participants completed a validated questionnaire about sun exposure and underwent a skin examination.

RESULTS

219 workers were included in the study (80% male; mean age 43.8 (SD 11.31) years). Actinic keratosis (AK) but no other skin cancers were detected in 32 participants (14.62%). Those with AK worked in the Southernmost ski resort, were more likely to have light colour hair, and were older and with higher photoaging grade than those without them.

CONCLUSION

Compared to other studies, outdoor workers on ski resorts show a higher prevalence of AK than general population but a lower prevalence than other groups of outdoor workers.

Sun-protection and sun-exposure habits among sailors: results of the 2018 world's largest sailing race Barcolana' skin cancer prevention campaign

BACKGROUND

Epidemiologic data suggest an increased risk of melanoma (MM) and non-melanoma skin cancer (NMSC) in persons with intense recreational sun-exposure such as marathon runners or surfers. Up to data little is known about the sun-exposure habits, sun-protection behaviours and risk factors for MM and NMSC among sailors.

OBJECTIVE

The objective of this prospective, cross-sectional study was to investigate the sun-exposure and sun-protective habits and risk factors for skin cancer among sailors attending the 50° edition of Barcolana, the largest sailing race in of the world, which took place in October 2018 in Trieste, Italy as an integrative component of a public sun-prevention campaign.

METHODS

The study consisted of 2 parts: (i) a self-administered questionnaire focusing on sun-exposure and protective habits and (ii) a free skin examination carried out by volunteer dermatologists. Participation was optional and anonymous, and open to visitors and sailors attending the event.

RESULTS

Overall, 431 (52.4%) sailors and 391 (47.6%) visitors responded to the questionnaire, while a total of 437 individuals including 189 (43.3%) sailors and 248 (56.6%) visitors participated in the skin examination group. The majority of sailors reported a past history of severe sunburns (20.2%), applied sunscreen never (14.4%) to sometimes (45.7%) or only once daily (59%) on the face (55%) and shoulders (26%). Moreover, 14% of sailors had a personal history of non-melanoma skin cancer (NMSC). During the dermatological examination, suspicious lesions for skin cancer (including MM and NMSC) were identified in 37% of the sailors.

CONCLUSION

Our findings support the need to develop and promote primary and secondary prevention strategies to improve the sun-exposure and sun-protective habits among sailors.

Primary prevention of keratinocyte carcinoma among outdoor workers, the general population and medical professionals: a systematic review updated for 2019

Worldwide 2-3 million cases of keratinocyte carcinoma (KC) are diagnosed annually. Sun-related knowledge is essential for adequate protection against solar ultraviolet radiation (UVR), the main risk factor for KC. The goal was (i) to provide an updated overview of primary prevention against KC including skin cancer-related knowledge, attitudes and sun protection behaviour (SPB) of outdoor workers, the general population and medical professionals as well as (ii) to evaluate the effectiveness and acceptability of sun protection programmes. We conducted a systematic review of articles indexed for MEDLINE on PubMed using selected MeSH terms and keywords related to the studied topic as well as an extensive hand search of publications between 1 January 2012 and 31 December 2018. We identified 51 relevant cross-sectional studies and 22 interventional studies. Sun-related knowledge and attitude showed substantial differences with some alarming results, including people who had not even heard about skin cancer before. Reported SPB varied enormously between the included studies, with none of the studies providing an overall sufficient SPB in their examined sun protection measures. However, sun protection programmes using new technologies seem to have great potential to increase sun-related knowledge and SPB. In countries worldwide, particularly in those where KC is not yet a public health issue, UVR protection should be promoted by healthcare institutions and authorities, politicians, cancer foundations and dermatologists to increase awareness as well as SPB and to decrease the worldwide burden of KC.

Occupational differences in standardized mortality ratios for non-melanotic skin cancer and melanoma in exposed areas among individuals with Fitzpatrick skin types III and IV

OBJECTIVE

The objective of this study was to identify subpopulations vulnerable to skin cancer by occupations, among individuals with Fitzpatrick skin types III and IV.

METHODS

Data were retrieved from the national mortality registry of Korean National Statistical Office (KNSO) from 1993 to 2012, including all medical certificates of death written and confirmed by physicians. Medical certificates of death from 1993 to 2012 were obtained from the national mortality registry of Korean National Statistical Office. These completed medical certificates are verified by the Korean Ministry of Government Administration and Home Affairs and formatted using 103 main and 236 specific causes of death as recommended by the World Health Organization. We calculated direct standardized mortality rate and standardized mortality ratio (SMR) using the indirect standardization method. The entire population as reflected in the 2005 national census was used as a reference population.

RESULTS

Of 594 deaths from skin cancer, 227 (38.2%) were from non-melanotic skin cancer (NMSC) and 367 (61.8%) from cutaneous melanoma (CM). Compared to office workers, agriculture/fishery/forestry workers had significantly higher SMRs for NMSC in men [SMR: 461, 95% confidential interval (CI): 329-583] and women (SMR: 575, 95% CI: 317-864). SMR was also increased in men who worked in exposed area (SMR of NMSC:553, 95% CI:222-1018, SMR of CM:453, 95% CI: 133-1009).

CONCLUSION

This is the first Asian study to suggest that agriculture/fishery/forestry workers have increased SMRs for NMSC and CM in exposed areas. Early diagnosis of skin cancer in this group is important.

'Try to make good hay in the shade - it won't work!' A qualitative interview study on the perspectives of Bavarian farmers regarding primary prevention of skin cancer

BACKGROUND

Extensive exposure to solar ultraviolet radiation (UVR) is the main risk factor for keratinocyte carcinoma (KC), making outdoor workers, including farmers, a high-risk population for KC. The use of sun protection is crucial for KC prevention but is not typically implemented by outdoor workers during their daily tasks.

OBJECTIVES

To explore the attitudes of Bavarian farmers regarding sun-protective measures in their daily work and to understand perceived barriers and unmet needs.

METHODS

Farmers were recruited through the Bavarian Farmers Association in Bavaria, Southern Germany. Qualitative semi structured interviews were conducted with participants between December 2017 and March 2018. Interviews were recorded, transcribed verbatim and analysed using qualitative content analysis.

RESULTS

Twenty farmers (11 women, nine men; nine aged 18-30 years, 11 aged > 60 years) participated. Knowledge and awareness of UVR exposure and KC, perceived individual barriers to implementing sun-protective measures, individual experiences and farm life-specific circumstances emerged as key areas influencing the perspectives of farmers regarding the primary prevention of KC. Female farmers tended to take a more positive stance on sun protection, whereas male farmers showed a lower overall interest.

CONCLUSIONS

Knowledge and awareness of KC and UVR exposure is very limited in Bavarian farmers with serious perceived barriers due to the demands of daily agricultural work. Further qualitative studies are needed to identify intervention options that can increase skin cancer awareness and that can successfully overcome real barriers to implementing sun protection.

Trends in the treatment and prevention of keratinocyte carcinoma (non-melanoma skin cancer)

Keratinocyte carcinoma (KC), previously also known as non-melanoma skin cancer, is the most common malignancy worldwide. It comprises basal cell carcinoma, squamous cell carcinoma (SCC), and actinic keratoses as carcinoma in situ or precursors of SCC. With solar ultraviolet radiation being the main risk factor, several countries have accepted KC as an occupational disease of outdoor professions. The prevalence in these high-risk groups is substantial, but awareness and preventive behavior remains inadequate. Parallel to the development of improved treatments, such as daylight photodynamic therapy and PD1 inhibitors for progressive KC, target-oriented prevention strategies are requisite if the global burden of KC is to be lowered. Health-related communication, internet search analysis, and telemedicine could be the key to addressing this issue.