FIGURE 3.

Female‐to‐male IRRs of lung cancer (completed and imputed) in three cancer registries in Japan, 1993 to 2015, by histology and stage combined. (A) Female‐to‐male IRRs of localized SMC; (B) Female‐to‐male IRRs of localized SQC; (C) Female‐to‐male IRRs of localized ADC; (D) Female‐to‐male IRRs of regional SMC; (E) Female‐to‐male IRRs of regional SQC; (F) Female‐to‐male IRRs of regional ADC; (G) Female‐to‐male IRRs of distant SMC; (H) Female‐to‐male IRRs of distant SQC; (I) Female‐to‐male IRRs of distant ADC. ADC, adenocarcinoma; IRRs, incidence rate ratios; SMC, small cell carcinoma; SQC, squamous cell carcinoma. The solid lines are the original trends; the dashed lines are the imputed trends; the shaded areas are the 95% confidence intervals. The three Japanese cancer registries are in Yamagata, Fukui and Nagasaki prefectures