Fig. 2

Local hot spot map for colorectal cancer incidence in Guangzhou, China during 2010–2014. High–high: clusters of streets with high incidences. Low-low: clusters of streets with low incidences. High–low: streets with high incidences surrounded mainly by streets with low incidences. Low–high: streets with low incidences surrounded mainly by streets with high incidences. High-high clusters include 25 streets in central urban areas. Low–low clusters include 30 streets in most suburban areas