Tables
- TABLE 1
Relationship between job category and lung function for those beginning their employment pre-2003 (cohort 1) by sex and racial group
Variable Non-Asian males (n=302) Asian males (n=47) Non-Asian females (n=181) Estimated change in % predicted FEV1 (p-value) Estimated change in % predicted FVC (p-value) Estimated change in % predicted FEV1 (p-value) Estimated change in % predicted FVC (p-value) Estimated change in % predicted FEV1 (p-value) Estimated change in % predicted FVC (p-value) Pack-years of smoking −0.30 (<0.01) −0.13 (<0.01) −0.13 (0.27) −0.03 (0.76) −0.31 (<0.01) −0.16 (0.05) Current smoker# −0.37 (0.56) −0.08 (0.88) −0.91 (0.70) 2.9 (0.21) −0.90 (0.32) 0.15 (0.86) BMI at first PFT −0.38 (<0.01) −0.62 (<0.01) −0.66 (0.12) −1.13 (<0.01) −0.14 (0.35) −0.38 (<0.01) BMI change since first PFT −0.45 (<0.01) −0.43 (<0.01) −0.39 (0.36) −0.38 (0.35) −0.2 (0.01) −0.27 (<0.01) Time since first PFT −0.57 (<0.01) −0.55 (<0.01) −0.39 (0.51) 0.75 (0.19) −0.30 (0.02) −0.23 (0.04) Mixer −7.92 (<0.01) −1.78 (0.46) −13.7 (<0.01) −9.94 (0.02) 4.13 (0.44) −0.70 (0.89) Intermittent mixer 2.74 (0.10) 2.63 (0.07) 6.19 (0.15) 6.70 (0.12) 2.47 (0.65) 2.03 (0.69) QA 2.05 (0.79) 4.06 (0.55) NA NA −1.38 (0.70) −2.12 (0.52) Interaction mixer×time since first PFT¶ 0.02 (0.96) −0.16 (0.64) 0.68 (0.62) 0.72 (0.59) 0.00 (0.99) 0.40 (0.43) Interaction intermittent mixer×time since first PFT¶ 0.41 (0.06) 0.27 (0.17) 0.88 (0.34) −0.12 (0.90) −0.77 (0.12) −0.61 (0.18) Interaction QA×time since first PFT¶ 1.3 (0.29) 1.3 (0.26) NA NA −0.71 (0.06) −0.75 (0.04) Non-Asian males: mixers (n=27), intermittent mixers (n=111), quality assurance operators (QA) (n=3), other (n=161); Asian males: mixers (n=7), intermittent mixers (n=6), QA (n=0), other (n=34); non-Asian females: mixers (n=8), intermittent mixers (n=8), QA (n=20), other (n=145). FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; BMI: body mass index; PFT: pulmonary function test; NA: not applicable.#: compared with never- and ex-smokers. ¶: compared to “others” defined as employees without employment as pre-2003 mixer, pre-2003 intermittent mixer (maintenance and supervisors) or pre-2003 QA operator.
