Figure 1
From: Geographical clustering of lung cancer in the province of Lecce, Italy: 1992–2001
Age-specific lung cancer mortality rates in the province of Lecce – reported by triennial, covering the period 1981–2001. The age groups used correspond to those given by the output of the Cislaghi mortality atlas. The age groups in which no deaths were observed in each of the triennial considered were not reported (e.g. age class 1–14 for females). For males, lines corresponding to age classes 1–14 and 15–34 are indistinguishable.