TY - JOUR
T1 - Laryngeal Cancer Risks in Workers Exposed to Lung Carcinogens
T2 - Exposure-Effect Analyses Using a Quantitative Job Exposure Matrix
AU - Hall, Amy L
AU - Kromhout, Hans
AU - Schüz, Joachim
AU - Peters, Susan
AU - Portengen, Lützen
AU - Vermeulen, Roel
AU - Agudo, Antonio
AU - Ahrens, Wolfgang
AU - Boffetta, Paolo
AU - Brennan, Paul
AU - Canova, Cristina
AU - Conway, David I
AU - Curado, Maria Paula
AU - Daudt, Alexander W
AU - Fernandez, Leticia
AU - Hashibe, Mia
AU - Healy, Claire M
AU - Holcatova, Ivana
AU - Kjaerheim, Kristina
AU - Koifman, Rosalina
AU - Lagiou, Pagona
AU - Luce, Danièle
AU - Macfarlane, Gary J
AU - Menezes, Ana
AU - Menvielle, Gwenn
AU - Polesel, Jerry
AU - Ramroth, Heribert
AU - Richiardi, Lorenzo
AU - Stücker, Isabelle
AU - Thomson, Peter
AU - Vilensky, Marta
AU - Wunsch-Filho, Victor
AU - Yuan-Chin, Amy Lee
AU - Znaor, Ariana
AU - Straif, Kurt
AU - Olsson, Ann
N1 - Acknowledgments: We thank Véronique Luzon (IARC) for her assistance with data management.
PY - 2020/1
Y1 - 2020/1
N2 - INTRODUCTION: Various established occupational lung carcinogens are also suspected risk factors for laryngeal cancer. However, individual studies are often inadequate in size to investigate this relatively rare outcome. Other limitations include imprecise exposure assessment and inadequate adjustment for confounders.METHODS: This study applied a quantitative job exposure matrix (SYN-JEM) for four established occupational lung carcinogens to five case-control studies within the INHANCE Consortium. We used occupational histories for 2256 laryngeal cancer cases and 7857 controls recruited from 1989-2007. We assigned quantitative exposure levels for asbestos, respirable crystalline silica, chromium-VI, and chromium-VI & nickel combined (to address highly correlated exposures) via SYN-JEM. We assessed effects of occupational exposure on cancer risk for males (asbestos, respirable crystalline silica, chromium-VI, chromium-VI & nickel) and females (asbestos, respirable crystalline silica), adjusting for age, study, tobacco smoking, alcohol consumption, and asbestos exposure where relevant.RESULTS: Among females, odds ratios (ORs) were increased for ever versus never exposed. Among males, p-values for linear trend were <0.05 for estimated cumulative exposure (all agents) and <0.05 for exposure duration (respirable crystalline silica, chromium-VI, and chromium-VI & nickel); strongest associations were for asbestos at >90%ile cumulative exposure (OR=1.3, CI=1.0-1.6), respirable crystalline silica at 30+ years duration (OR=1.4, CI=1.2-1.7) and 75%-90%ile cumulative exposure (OR=1.4, CI=1.1-1.8), chromium-VI at >75%ile cumulative exposure (OR=1.9, CI=1.2-3.0), and chromium-VI & nickel at 20-29 years duration (OR=1.5, CI=1.1-2.2).CONCLUSIONS: These findings support hypotheses of causal links between four lung carcinogens (asbestos, respirable crystalline silica, chromium-VI, and nickel) and laryngeal cancer.
AB - INTRODUCTION: Various established occupational lung carcinogens are also suspected risk factors for laryngeal cancer. However, individual studies are often inadequate in size to investigate this relatively rare outcome. Other limitations include imprecise exposure assessment and inadequate adjustment for confounders.METHODS: This study applied a quantitative job exposure matrix (SYN-JEM) for four established occupational lung carcinogens to five case-control studies within the INHANCE Consortium. We used occupational histories for 2256 laryngeal cancer cases and 7857 controls recruited from 1989-2007. We assigned quantitative exposure levels for asbestos, respirable crystalline silica, chromium-VI, and chromium-VI & nickel combined (to address highly correlated exposures) via SYN-JEM. We assessed effects of occupational exposure on cancer risk for males (asbestos, respirable crystalline silica, chromium-VI, chromium-VI & nickel) and females (asbestos, respirable crystalline silica), adjusting for age, study, tobacco smoking, alcohol consumption, and asbestos exposure where relevant.RESULTS: Among females, odds ratios (ORs) were increased for ever versus never exposed. Among males, p-values for linear trend were <0.05 for estimated cumulative exposure (all agents) and <0.05 for exposure duration (respirable crystalline silica, chromium-VI, and chromium-VI & nickel); strongest associations were for asbestos at >90%ile cumulative exposure (OR=1.3, CI=1.0-1.6), respirable crystalline silica at 30+ years duration (OR=1.4, CI=1.2-1.7) and 75%-90%ile cumulative exposure (OR=1.4, CI=1.1-1.8), chromium-VI at >75%ile cumulative exposure (OR=1.9, CI=1.2-3.0), and chromium-VI & nickel at 20-29 years duration (OR=1.5, CI=1.1-2.2).CONCLUSIONS: These findings support hypotheses of causal links between four lung carcinogens (asbestos, respirable crystalline silica, chromium-VI, and nickel) and laryngeal cancer.
KW - Occupational Exposure
KW - Laryngeal Neoplasms
KW - Case–control Studies
KW - Asbestos
KW - Respirable Crystalline Silica
KW - Nickel, Chromium(VI)
KW - Carcinogens
KW - Cancer
KW - chromium(VI)
KW - OCCUPATIONAL EXPOSURES
KW - DUST EXPOSURE
KW - SYN-JEM
KW - Occupational exposure
KW - Respirable crystalline silica
KW - NECK-CANCER
KW - TOBACCO
KW - CIGARETTE-SMOKING
KW - Laryngeal neoplasms
KW - Case-control studies
KW - POOLED ANALYSIS
KW - ASBESTOS EXPOSURE
KW - Nickel
KW - INTERNATIONAL HEAD
UR - http://www.scopus.com/inward/record.url?scp=85075961863&partnerID=8YFLogxK
U2 - 10.1097/EDE.0000000000001120
DO - 10.1097/EDE.0000000000001120
M3 - Article
C2 - 31577634
SN - 1044-3983
VL - 31
SP - 145
EP - 154
JO - Epidemiology
JF - Epidemiology
IS - 1
ER -