Annual Report 2012 - Business.govt.nz

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National cancer figures for mesothelioma12010080604020019541958196219641965196619671968196919701971197219731974197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010Number of casesFigure 5: Number of cases of mesothelioma in New Zealand 1954-2010Over the period from 1954 to 2010, a total of 1,618 cases of mesothelioma have beenregistered. Figure 5 shows that the total number of cases continued to rise and in 2005 itexceeded 100 for the first time. However, the cases have remained in the 90s for the lasttwo years, which equates to approximately two cases each week.Mesothelioma is very much a disease of old age as Table 3 illustrates, with 49% of casesoccurring to people aged 70 or over.Gender Age group Total< 50 50s 60s 70s 80s 90sFemale 13 26 38 48 35 5 165Male 18 136 316 369 173 14 1026Total 31 162 354 417 208 19 1191Table 3: Mesothelioma occurrence by age range 1994-2010Of the 1191 cases, 165 occurred to women and 1026 to men. As women are seldomemployed directly in the asbestos-exposed workplaces, their exposure could be as a result of“secondary” exposure to dust brought home from work on the hair and clothes of familymembers.Asbestos and other Occupational Lung Diseases in New Zealand 2012 Annual Report Page 18
Lung cancer30%Percentage of Total Notifications25%20%15%10%5%0%Figure 6: Distribution of lung cancer by occupationLung cancer is a cancer of some of the cells in parts of the lung, usually beginning in thelining of the airway.The panel reviewed a total of 124 cases of lung cancer, of which:• 118 were Caucasian• 4 were Maori• 1 was from a Pacific Island• 1 was identified as ‘Other’• 122 were males, 2 were females• the mean age at diagnosis was 69 (range 42-86)• the mean number of years since first exposure was 46 (range 17-63)• the mean exposure index was 165 (range 12-565)• there were 28 current smokers, 85 ex-smokers, 8 never smokers and 3 unknown.Lung cancers are classified according to the type of cell affected. Histological classificationrevealed 55 cases of squamous cell carcinoma, 30 adeno, 15 small cell, 4 undifferentiated, 1bronchiolar-alveolar, 4 large cell and 15 cases where classification was not stated. Inaddition, the tumour sites were as follows: 46 upper lobe, 46 lower lobe, 11 middle lobe,and 21 not stated.The occupational distribution of lung cancer follows a similar pattern to both pleural plaquesand asbestosis, in that plumbers, fitters, carpenters and asbestos processors account formost of the cases.Page 19Asbestos and other Occupational Lung Diseases in New Zealand 2012 Annual Report
Page 1 and 2: Asbestos and otherOccupational Lung
Page 3 and 4: ContentsIntroduction ..............
Page 5 and 6: Summary of asbestos-related changes
Page 7 and 8: Amosite (iron magnesium silicate) f
Page 9 and 10: three sites were highest among the
Page 11 and 12: 2011 Professor Ken Takahashi from t
Page 13 and 14: The programme covered a wide range
Page 15 and 16: ResultsFigure 2 shows the distribut
Page 17: Mesothelioma30Percentage of Total N
Page 21 and 22: 706050Number of Cases4030201000/1 1
Page 23 and 24: Of the 649 cases reviewed:• 637 w
Page 25 and 26: • lack of a thorough ‘clean up
Page 27 and 28: Part 3: Occupational respiratory di
Page 29 and 30: varied from year to year, but with
Page 31 and 32: contain a higher content of quartz
Page 33 and 34: Appendix 2The National Asbestos Reg
Page 35 and 36: AsbestosDisease RegisterPatient not
Page 37 and 38: BCD= Job intensity as follows:Minin
Page 39 and 40: Recent Advances in Asbestos-Related
Page 41 and 42: 15 Assessing Individual Employee Ri
Page 43: MINISTRY OF BUSINESS, INNOVATION &

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