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Table 5. Meta-Analysis Results: Intermittent and Chronic Sun Exposure and Melanoma Risk

Study Citation Intermittent Sun Exposure (OR, 95% CI) Chronic Sun Exposure (OR, 95% CI) Comments 
CI = confidence interval; OR = odds ratio.
Nelemans et al.[4]1.6 (1.3–1.9)0.7 (0.6–0.9)Lack of standardized measures an issue.
Elwood et al.[5]1.7 (1.5–1.9)0.9 (0.8–0.9)Mechanisms for the differences in types of sun exposure not understood.
Gandini et al.[6]1.6 (1.3–1.9)0.9 (0.7–1.0)None.


  1. Nelemans PJ, Rampen FH, Ruiter DJ, et al.: An addition to the controversy on sunlight exposure and melanoma risk: a meta-analytical approach. J Clin Epidemiol 48 (11): 1331-42, 1995.  [PUBMED Abstract]

  2. Elwood JM, Jopson J: Melanoma and sun exposure: an overview of published studies. Int J Cancer 73 (2): 198-203, 1997.  [PUBMED Abstract]

  3. Gandini S, Sera F, Cattaruzza MS, et al.: Meta-analysis of risk factors for cutaneous melanoma: III. Family history, actinic damage and phenotypic factors. Eur J Cancer 41 (14): 2040-59, 2005.  [PUBMED Abstract]