Population exposure to ultraviolet radiation in Finland 1920–1995: Exposure trends and a time-series analysis of exposure and cutaneous melanoma incidence

Kojo, Katja; Jansén, Christer T.; Nybom, Pia; Huurto, Laura; Laihia, Jarmo K.; Ilus, Taina; Auvinen, Anssi

doi:10.1016/j.envres.2005.09.007

Cited by 24 publications

(21 citation statements)

References 20 publications

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“…However, both the usual infra-annual cycles and infra-annual hypercycles as well as some statistical associations with Rz (dT=+11~+13 years, on average) are similar across different countries. The recent findings, from a time-series analysis on population exposure to UV radiation over a very long time interval from 1920 to 1995 in Finland (Kojo et al, 2006), confirmed our results by indicating that the most likely lag-period of +5~+19 years prior to melanoma appearance might be the most relevant "silent" period in the aetiology of melanoma as related to solar UV radiation.…”

Section: Discussionsupporting

confidence: 79%

Cyclic patterns of incidence rate for skin malignant melanoma: association with heliogeophysical activity

Dimitrov

Rachkova

Atanassova

2008

J. Zhejiang Univ. Sci. B

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Background: Our previous studies revealed cyclicity in the incidence rate of skin malignant melanoma (SMM; ICD9, Dx:172) in the Czech Republic (period T=7.50~7.63 years), UK (T=11.00 years) and Bulgaria (T=12.20 years). Incidences compared with the sunspot index Rz (lag-period dT=+2, +4, +6, +10 or +12 years) have indicated that maximal rates are most likely to appear on descending slopes of the 11-year solar cycle, i.e., out of phase. We summarized and explored more deeply these cyclic variations and discussed their possible associations with heliogeophysical activity (HGA) components exhibiting similar cyclicity. Methods: Annual incidences of SMM from 5 countries (Czech Republic, UK, Bulgaria, USA and Canada) over various time spans during the years 1964~1992 were analyzed and their correlations with cyclic Rz (sunspot number) and aa (planetary geomagnetic activity) indices were summarized. Periodogram regression analysis with trigonometric approximation and phase-correlation analysis were applied. Results: Previous findings on SMM for the Czech Republic, UK and Bulgaria have been validated, and cyclic patterns have been revealed for USA (T=8.63 years, P<0.05) and Canada (Ontario, T=9.91 years, P<0.10). Also, various 'hypercycles' were established (T=45.5, 42.0, 48.25, 34.5 and 26.5 years, respectively) describing long-term cyclic incidence patterns. The association of SMM for USA and Canada with Rz (dT=+6 and +7 years, respectively) and aa (dT=−10 and +9 years, respectively) was described. Possible interactions of cyclic non-photic influences (UV irradiation, Schumann resonance signal, low-frequency geomagnetic fluctuations) with brain waves absorbance, neuronal calcium dynamics, neuro-endocrine axis modulation, melatonin/serotonin disbalance and skin neuro-immunity impairment as likely causal pathways in melanoma appearance, were also discussed. Conclusion: The above findings on cyclicity and temporal association of SMM with cyclic environmental factors could not only allow for better forecasting models but also lead to a better understanding of melanoma aetiology.

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Section: Discussionsupporting

confidence: 79%

Cyclic patterns of incidence rate for skin malignant melanoma: association with heliogeophysical activity

Dimitrov

Rachkova

Atanassova

2008

J. Zhejiang Univ. Sci. B

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“…Because interest reaches a bottom during winter time, it would be of interest that public health initiatives organize a second campaign of information during this period. Scandinavians and Finns tend to take sunny vacations to South Europe or the Far East during winter, increasing the risk of excessive sun exposure and sunburns [8, 9]. …”

Section: Discussionmentioning

confidence: 99%

A Comparative Study of Google Search Trends for Melanoma, Breast Cancer and Prostate Cancer in Finland

Kluger

Bouchard

2019

Dermatology

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“…Since the 1970s, lifestyles and clothing habits have changed, and body areas subject to sun exposure have changed accordingly. 5 Studies from Australia 6 and Canada 7 performed between 1987 and 1992 found a smaller proportion of melanomas on the lower extremities for both sexes. However, to the best of our knowledge, there have been no studies examining this issue in the United States since 1977 or elsewhere since 1992.…”

mentioning

confidence: 97%

Association between the anatomic distribution of melanoma and sex

Clark¹,

Shin²,

Troxel

et al. 2007

Journal of the American Academy of Dermatology

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Population exposure to ultraviolet radiation in Finland 1920–1995: Exposure trends and a time-series analysis of exposure and cutaneous melanoma incidence

Cited by 24 publications

References 20 publications

Cyclic patterns of incidence rate for skin malignant melanoma: association with heliogeophysical activity

Cyclic patterns of incidence rate for skin malignant melanoma: association with heliogeophysical activity

A Comparative Study of Google Search Trends for Melanoma, Breast Cancer and Prostate Cancer in Finland

Association between the anatomic distribution of melanoma and sex

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