Table 3

Garment workers’ mortality (since 1960†) from leukaemia and heart disease (US referent rates): update of cohort to 1998‡

Cause of death (ICD codes)§OBSSMR95% CI
OBS, observed number of deaths; SMR, standardised mortality ratio; CI, confidence interval; CA = cancer.
†Results for subtypes of myeloid leukaemia are for 1968, when US mortality rates for acute myeloid leukaemia and chronic myeloid leukaemia were first available, through 1998. One chronic myeloid leukaemia death occurred prior to 1968.
‡Results for all race/sex groups combined.
§International Classification of Diseases, 9th revision.
*95% CI excludes the null value (1.0).
**99% CI excludes the null value (1.0).
Leukaemia (204–208)241.090.70 to 1.63
    Lymphocytic leukaemia (204)30.600.12 to 1.75
    Myeloid leukaemia (205)151.440.80 to 2.37
        Acute myeloid leukaemia (205.0)91.340.61 to 2.54
        Chronic myeloid leukaemia (205.1)41.390.38 to 3.56
        Other and unspecified myeloid leukaemia (205.2–205.9)12.150.05 to 11.94
    Other and unspecified leukaemia (206–208)60.920.34 to 2.00
Heart disease (390–398, 402–404, 410–414, 420–429)6910.970.90 to 1.04
    Ischaemic heart disease (410–414, 429.2)5220.940.86 to 1.03
    Cardiomyopathy (425)190.990.59 to 1.54
    Conductive disorders (426–427)491.320.97 to 1.74
    Other heart diseases (420–423, 428, 429.3–429.9)621.43**1.10 to 1.83