“…Later in 2006, another meta-analysis containing 19 studies (Wynder et al, 1971;Ragozzino et al, 1982;Mishina et al, 1985;Thompson et al, 1989;Smith et al, 1992;Steenland et al, 1995;Coughlin et al, 1996;Will et al, 1999;Rosenberg et al, 2002;Tavani et al, 2002;Weiderpass et al, 2002;Coker et al, 2004;Lightfoot et al, 2004;Zhu et al, 2004;Gonzalez-Perez et al, 2005;Rodriguez et al, 2005;Tavani et al, 2005) was published (Kasper et al, 2006). They both showed that diabetic patients have a statistically significant (9% in 2004 and 16% in 2006) decrease in the risk of developing PCa.…”