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. 2014 Sep 15;120(18):2883-92.
doi: 10.1002/cncr.28749. Epub 2014 Aug 11.

US lung cancer trends by histologic type

Denise Riedel Lewis  1 , David P Check, Neil E Caporaso, William D Travis, Susan S Devesa
Affiliations

US lung cancer trends by histologic type

Denise Riedel Lewis et al. Cancer. .

Abstract

Background: Lung cancer incidence rates overall are declining in the United States. This study investigated the trends by histologic type and demographic characteristics.

Methods: Surveillance, Epidemiology, and End Results (SEER) program rates of microscopically confirmed lung cancer overall and squamous cell, small cell, adenocarcinoma, large cell, other, and unspecified carcinomas among US whites and blacks diagnosed from 1977 to 2010 and white non-Hispanics, Asian/Pacific Islanders, and white Hispanics diagnosed from 1992 to 2010 were analyzed by sex and age.

Results: Squamous and small cell carcinoma rates declined since the 1990s, although less rapidly among females than males. Adenocarcinoma rates decreased among males and only through 2005, after which they then rose during 2006 to 2010 among every racial/ethnic/sex group; rates for unspecified type declined. Male/female rate ratios declined among whites and blacks more than among other groups. Recent rates among young females were higher than among males for adenocarcinoma among all racial/ethnic groups and for other specified carcinomas among whites.

Conclusions: US lung cancer trends vary by sex, histologic type, racial/ethnic group, and age, reflecting historical cigarette smoking rates, duration, cessation, cigarette composition, and exposure to other carcinogens. Substantial excesses among males have diminished and higher rates of adenocarcinoma among young females have emerged as rates among males declined more rapidly. The recognition of EGFR mutation and ALK rearrangements that occur primarily in adenocarcinomas are the primary basis for the molecular revolution that has transformed lung cancer diagnosis and treatment over the past decade, and these changes have affected recent type-specific trends.

Keywords: cigarette smoking; epidemiology; ethnicity; gender; histology; lung cancer incidence; race; trends.

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Figures

Figure 1
Figure 1
Trends in lung cancer incidence rates (age-adjusted 2000 US standard) from 1977 to 1981 through 2006 to 2010 in the SEER 9 registries by histologic type.
Figure 2
Figure 2
Trends in lung cancer incidence rates (age-adjusted 2000 US standard) by histologic type and sex in the SEER 9 registries from 1977 to 1981 through 2006 to 2010 among whites and blacks, and in the SEER 13 registries 1992 to 1996 through 2006 to 2010 among whites (non-Hispanic), Asian/Pacific Islanders, and Hispanics (white).
Figure 3
Figure 3
Trends in age-specific lung cancer incidence rates (age-adjusted 2000 US standard) by histologic type and sex in the SEER 9 registries from 1977 to 1981 through 1987 to 1991 among whites and blacks, and in the SEER 13 registries from 1992 to 1996 through 2006 to 2010 among whites (non-Hispanic), blacks, Asian/Pacific Islanders, and Hispanics (white) by year of birth. Rates based on <16 cases are not shown.
Figure 4
Figure 4
Cigarette smoking by race/ethnicity and sex: age-specific prevalence of ever-smoking by year of birth, age-adjusted prevalence of current smoking by year of survey, and age-specific prevalence of current smoking by year of birth [14,15].
See this image and copyright information in PMC

Comment in

References

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