Case‐control study of high risk occupations for bladder cancer in New Zealand

Dryson, Evan; Mannetje, Andrea ’t; Walls, Chris; McLean, Dave; McKenzie, Fiona; Maule, Milena; Cheng, Shih-Lung; Cunningham, Chris; Kromhout, Hans; Boffetta, Paolo; Blair, Aaron; Pearce, Neil

doi:10.1002/ijc.23194

Cited by 38 publications

(42 citation statements)

References 37 publications

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“…Czene et al (2003) found an increased risk for urinary bladder cancer among male hairdressers which peaked with exposures back in the 1960s and has been decreasing in the following years. Gaertner et al (2004) and Dryson et al (2008) also confirmed these findings. However, in recent decades, an increased risk of bladder cancer amongst hairdressers could not be determined (Czene et al 2003).…”

Section: Introductionsupporting

confidence: 89%

Internal exposure of hairdressers to permanent hair dyes: a biomonitoring study using urinary aromatic diamines as biomarkers of exposure

Gube

Heinrich

Dewes

et al. 2010

Int Arch Occup Environ Health

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The internal exposure to aromatic diamines in hairdressers using permanent hair dyes can be determined using biological monitoring. The extent of exposure is low compared to subjects after personal application of hair dyes, who excreted more than 200 times higher amounts of aromatic diamines. This slight work-related exposure might be reduced by the strict adherence to the use of suitable gloves as well as long-sleeved clothing.

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Section: Introductionsupporting

confidence: 89%

Internal exposure of hairdressers to permanent hair dyes: a biomonitoring study using urinary aromatic diamines as biomarkers of exposure

Gube

Heinrich

Dewes

et al. 2010

Int Arch Occup Environ Health

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“…Hairdressing was identified as one of the highest risk occupations of bladder cancer because of the exposure to dye [9,34,35]. In this study no significant association was identified between them.…”

Section: Discussioncontrasting

confidence: 45%

Association between the high risk occupations and bladder cancer in Iran: A case-control study

Khoubi¹,

Pourabdian²,

Mohebbi³

et al. 2013

International Journal of Occupational Medicine and Environmental Health

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Objectives: The objective of this work was to identify the high-risk occupations in Iran and to re-inspect occupations that were related to bladder cancer. Materials and Methods: In the study, 300 patients suffering from bladder cancer and 500 control individuals were interviewed. Demographic information, occupational history, and history of exposure to chemical compounds such as aromatic amines for each participant were collected. ORs and 95% CIs were calculated using unconditional logistic regression for each occupation. Results: There was a significantly increased risk of bladder cancer among truck and bus drivers (OR = 11.3), skilled agricultural, forestry and fishery workers (OR = 6.0), metal industry workers (OR = 6.0), domestic housekeepers (OR = 5.9), and construction workers (OR = 3.8). Conclusions: The study showed a strong correlation between truck and bus drivers, skilled agricultural, forestry and fishery workers, metal industry workers, domestic housekeepers, as well as construction workers and the increased risk of bladder cancer in these occupations.

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“…*Two studies26 41 were excluded because study period was not presented in the original study.†Two studies from New Zealand35 55 were excluded from this analysis.…”

Section: Resultsmentioning

confidence: 99%

“…† For convenience reasons only the first author is given. Studies 17 18 26 33 35 37 41 42 44–48 51 52 55 56 with no definition or unsuitable definition for job held were excluded form this analysis.…”

Section: Resultsmentioning

confidence: 99%

Bladder cancer among hairdressers: a meta-analysis

et al. 2010

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BackgroundOccupational risks for bladder cancer in hairdressers by using hair products have been examined in many epidemiological studies. But owing to small sample sizes of the studies and the resulting lack of statistical power, the results of these studies have been inconsistent and significant associations have rarely been found.MethodsWe conducted a meta-analysis to determine summary risk ratios (SRRs) for the risk of bladder cancer among hairdressers. Studies were identified by a MEDLINE, EMBASE, CENTRAL search and by the reference lists of articles/relevant reviews. Statistical tests for publication bias and for heterogeneity as well as sensitivity analysis were applied. In addition, the study quality and the risk of bias were assessed using six criteria.Results42 studies were included and statistically significantly increased risks around 1.3–1.7 were found for all but one analysis. The SRR increased with duration of employment from 1.30 (95% CI 1.15 to 1.48) for ‘ever registered as hairdresser’ to 1.70 (95% CI 1.01 to 2.88) for ‘job held ≥10 years’. No difference was found between the risk for smoking-adjusted data (SRR 1.35, 95% CI 1.13 to 1.61) and no adjustment (SRR 1.33, 95% CI 1.18 to 1.50). Studies assessed as being of high quality (n=11) and of moderate quality (n=31) showed similar SRRs. There was no evidence of publication bias or heterogeneity in all analyses.ConclusionIn summary, our results showed an increased and statistically significant risk for bladder cancer among hairdressers, in particular for hairdressers in jobs held ≥10 years. Residual confounding by smoking cannot be totally ruled out. Because of the long latency times of bladder cancer it remains an open question whether hairdressers working prior to 1980 and after 1980, when some aromatic amines were banned as hair dye ingredients, have the same risk for bladder cancer.

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Case‐control study of high risk occupations for bladder cancer in New Zealand

Cited by 38 publications

References 37 publications

Internal exposure of hairdressers to permanent hair dyes: a biomonitoring study using urinary aromatic diamines as biomarkers of exposure

Internal exposure of hairdressers to permanent hair dyes: a biomonitoring study using urinary aromatic diamines as biomarkers of exposure

Association between the high risk occupations and bladder cancer in Iran: A case-control study

Bladder cancer among hairdressers: a meta-analysis

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