Table 1.

Multiple myeloma risk among men workers by sector and occupation adjusted for age, period, and geographic area

Occupation*Whole cohort
Subcohort 1960-1970
CasesSIRRR (95% CI)§CasesSIRRR (95% CI)§
Sector 0: Professional and technical work465980.98 (0.89-1.08)230980.98 (0.86-1.12)
    004 Chemical engineers and technicians19970.96 (0.61-1.51)111451.44 (0.80-2.61)
    007 Surveyors, measurers, cartographers61951.95 (0.88-4.34)52452.46 (1.02-5.91)
    011 Chemists71891.90 (0.91-4.00)42842.87 (1.08-7.65)
    023 Agricultural horticultural researchers/advisors62012.00 (0.90-4.45)21251.26 (0.31-5.04)
    052 Teachers in theoretical subjects261421.42 (0.97-2.09)161801.80 (1.10-2.94)
    054 Teachers of music, arts or crafts121461.46 (0.83-2.58)91791.79 (0.93-3.44)
    085 Journalists, editors131581.57 (0.91-2.71)71371.36 (0.65-2.86)
Sector 1: Administrative and managerial106870.87 (0.71-1.05)36760.75 (0.54-1.04)
Sector 2: Bookkeeping and clerical work134990.99 (0.84-1.18)32940.94 (0.66-1.33)
    296 Insurance raters, claims adjusters71411.40 (0.67-2.94)52952.91 (1.21-6.99)
Sector 3: Sales work215990.98 (0.86-1.13)86920.91 (0.74-1.13)
    301 Working proprietors, wholesale trade141421.41 (0.83-2.39)41101.09 (0.41-2.92)
    332 Shop managers291181.18 (0.82-1.71)121221.22 (0.69-2.16)
Sector 4: Agriculture, forestry, and fishing4981161.18 (1.07-1.30)3591131.15 (1.03-1.28)
    401 Working proprietors, agricultural, horticultural, and forestry enterprisers3171211.22 (1.09-1.37)2591151.16 (1.02-1.32)
    412 Horticultural workers351311.32 (0.94-1.84)131401.41 (0.82-2.43)
    431 Fishermen141511.50 (0.89-2.54)131681.67 (0.97-2.88)
Sector 5: Mining and quarrying231321.32 (0.88-2.00)91311.31 (0.68-2.52)
Sector 6: Transport and communications230960.96 (0.84-1.09)1471031.02 (0.86-1.20)
    644 Road traffic supervisors121481.49 (0.84-2.62)31491.49 (0.48-4.61)
Sector 7: Production I861950.94 (0.87-1.02)447940.93 (0.84-1.03)
    735 Black smiths and forgers141251.26 (0.75-2.13)111591.61 (0.89-2.90)
    738 Other metal processing work71291.39 (0.66-2.91)32232.42 (0.78-7.50)
    744 Dental technicians63343.33 (1.50-7.42)63703.70 (1.66-8.24)
    774 Frame, circular sawyers, and planers191311.31 (0.83-2.05)41301.32 (0.50-3.52)
    782 Industrial spray painters111271.27 (0.70-2.30)3760.76 (0.24-2.35)
Sector 8: Production II418990.99 (0.89-1.10)139850.85 (0.72-1.01)
    822 Baker and pastry cooks231541.53 (1.02-2.31)161251.25 (0.76-2.04)
    852 Plastic products workers111241.21 (0.67-2.19)000.00 (0.00-.)
    856 Stone cutters and carvers102192.19 (1.18-4.08)41631.65 (0.62-4.40)
    872 Crane and hoist operators131281.31 (0.76-2.26)4950.98 (0.37-2.61)
    874 Construction machine operators241291.29 (0.86-1.93)111461.46 (0.81-2.64)
Sector 9: Services and military work1771071.07 (0.92-1.25)861081.08 (0.87-1.33)
    904 Prison and reformatory officials72152.16 (1.03-4.53)53403.40 (1.41-8.18)
    908 Other civilian protective service work191231.24 (0.79-1.94)3960.97 (0.31-3,00)
    932 Cleaners141221.22 (0.72-2.07)21241.24 (0.31-4.95)
    941 Hairdressers, beauticians121261.26 (0.71-2.22)111211.21 (0.67-2.19)
    981 Member of the armed forces221231.20 (0.79-1.82)171151.12 (0.70-1.81)
  • * Occupations with at least 5 observed cases and RR ≥ 2.00 or at least 10 observed cases and RR ≥ 1.20 in whole cohort or in subcohort.

  • SIR: age and period SIR using the whole cohort as reference.

  • RR: age, period, and geographic area RR for each occupation in comparison with all others.

  • § 95% confidence intervals for the RR.