Table 1

Estimated reductions in FEV1associated with an exposure to coal mine dust of 1 ghm−3

StudyType of analysisNotesReductions in FEV1 (ml per ghm−3)
Rogan et al (1973)7 Cross-sectionalCurrent miners0.6
Love and Miller (1982)8 LongitudinalExtra loss over 11 years in relation to previous dust exposure0.36
Attfield (1985)14 LongitudinalExtra loss over 11 years in relation to concurrent dust exposure 1-1501.6
Soutar and Hurley (1986)9 Cross-sectionalCurrent and ex-miners0.76
Attfield and Hodous (1992)15 Cross-sectionalWhite males aged 25+ years0.69
Seixas et al(1992)16 Cross-sectionalMiners who started work in or after 1970 1-1503.4
Seixas et al(1993)17 LongitudinalMiners who started work in or after 1970. Extra loss over 11 years in relation to previous dust exposure 1-150−4.8
Miners who started work in or after 1970. Extra loss over 11 years in relation to concurrent dust exposure 1-150−1.8
Soutar et al(1993)11 Cross-sectionalSouth Wales1.04
Yorkshire0.08
NE England−0.28
Henneberger and Attfield (1996)18 LongitudinalMiners who worked before 1970. Extra loss over 11 years in relation to previous dust exposure 1-1500.48
Miners who worked before1970. Extra loss over 11 years in relation to concurrent dust exposure 1-150−1.3
Carta et al(1996)20 LongitudinalExtra loss over 11 years in relation to previous dust exposure 1-150−9.6
Extra loss over 11 years in relation to concurrent dust exposure 1-1504.8
  • 1-150 Calculated by us from the published results with the assumption that a miner works for 1600 hours per year.