• 1
    Vessey MP, Villard-Mackintosh L, Yeates D. Oral contraceptives, cigarette smoking and other factors in relation to arthritis. Contraception 1987; 35: 45764.
  • 2
    Hernández-Avila MH, Liang MH, Willett WC, Stampfer MJ, Colditz GA, Rosner B. Reproductive factors, smoking, and the risk of rheumatoid arthritis. Epidemiology 1990; 1: 28591.
  • 3
    Heliövaara M, Aho K, Aromaa A, Knekt P, Reunanen A. Smoking and the risk of rheumatoid arthritis. J Rheumatol 1993; 20: 18305.
  • 4
    Voight LF, Koepsell TD, Nelson JL, Dugowson CE, Daling JR. Smoking, obesity, alcohol consumption, and the risk of rheumatoid arthritis. Epidemiology 1994; 5: 52532.
  • 5
    Silman AJ, Newman J, MacGregor AJ. Cigarette smoking increases the risk of rheumatoid arthritis: results from a nationwide study of disease-discordant twins. Arthritis Rheum 1996; 39: 7325.
  • 6
    Symmons DPM, Bankhead CR, Harrison BJ, Brennan P, Barrett EM, Scott DGI, et al. Blood transfusion, smoking, and obesity as risk factors for the development of rheumatoid arthritis: results from a primary care–based incident case–control study in Norfolk, England. Arthritis Rheum 1997; 40: 195561.
  • 7
    Karlson EW, Lee I-M, Cook NR, Manson JE, Buring JE, Hennekens CH. A retrospective cohort study of cigarette smoking and risk of rheumatoid arthritis in female health professionals. Arthritis Rheum 1999; 42: 9107.
  • 8
    Uhlig T, Hagen KB, Kvien TK. Current tobacco smoking, formal education, and the risk of rheumatoid arthritis. J Rheumatol 1999;26: 4754.
  • 9
    Hutchinson D, Shepstone L, Moots R, Lear JT, Lynch MP. Heavy cigarette smoking is strongly associated with rheumatoid arthritis (RA), particularly in patients without a family history of RA. Ann Rheum Dis 2001; 60: 2237.
  • 10
    Olsson AR, Skogh T, Wingren G. Comorbidity and lifestyle, reproductive factors, and environmental exposures associated with rheumatoid arthritis. Ann Rheum Dis 2001; 60: 9349.
  • 11
    Saag KG, Cerhan JR, Kolluri S, Hunninghake GW, Schwartz DA. Cigarette smoking and rheumatoid arthritis severity. Ann Rheum Dis 1997; 56: 4639.
  • 12
    Wolfe F. The effect of smoking on clinical, laboratory and radiographic status in rheumatoid arthritis. J Rheumatol 2000; 27: 6307.
  • 13
    Masdottir B, Jonsson T, Manfreosdottir V, Vikingsson A, Brekkan A, Valdimarsson H. Smoking, rheumatoid factor isotypes and severity of rheumatoid arthritis. Rheumatology 2000; 39: 12025.
  • 14
    Tuomi T, Heliövaara M, Palosuo T, Aho K. Smoking, lung function, and rheumatoid arthritis. Ann Rheum Dis 1990; 49: 7536.
  • 15
    Ginns LC, Goldenheim PD, Miller LG, Burton RC, Gillick L, Colvin RB, et al. T-lymphocyte subsets in smoking and lung cancer. Am Rev Respir Dis 1982; 126: 2659.
  • 16
    Hughes DA, Haslam PL, Townsend PJ, Turner-Warwick M. Numerical and functional alterations in circulatory lymphocytes in cigarette smokers. Clin Exp Immunol 1985; 61: 45966.
  • 17
    Tollerud DJ, Clark JW, Brown LM, Neuland CY, Mann DL, Pankiw-Trost LK. The effects of cigarette smoking on T cell subsets: a population-based survey of healthy Caucasians. Am Rev Respir Dis 1989; 139: 144651.
  • 18
    Mattey DL, Hassell AB, Plant M, Dawes PT, Ollier WR, Jones PW. Association of polymorphism in glutathione S-transferase loci with susceptibility and outcome in rheumatoid arthritis: comparison with the shared epitope. Ann Rheum Dis 1999; 58: 1648.
  • 19
    Rebbeck TR. Molecular epidemiology of the human glutathione S-transferase genotypes GSTM1 and GSTT1 in cancer susceptibility. Cancer Epidemiol Biomarkers Prev 1997; 6: 73343.
  • 20
    Seidergard J, Pero RW, Markowitz MM, Roush G, Miller DG, Beattie EJ. Isoenzyme(s) of glutathione S-transferase (class mu) as a marker for the susceptibility to lung cancer: a follow up study. Carcinogenesis 1990; 11: 336.
  • 21
    Chenevix-Trench G, Young J, Coggan M, Board P. Glutathione S-transferase M1 and T1 polymorphisms: susceptibility to colon cancer and age of onset. Carcinogenesis 1995; 16: 16557.
  • 22
    McWilliams JE, Sanderson BJ, Harris EL, Richert-Boe KE, Henner WD. Glutathione S-transferase M1 (GSTM1) deficiency in lung cancer. Cancer Epidemiol Biomarkers Prev 1995; 4: 58994.
  • 23
    Hayes JD, Pulford DJ. The glutathione S-transferase supergene family: regulation of GST and the contribution of the isoenzymes to cancer chemoprotection and drug resistance. Crit Rev Biochem Mol Biol 1995; 30: 445600.
  • 24
    Bell DA, Taylor JA, Paulson DF, Robertson CN, Mohler JL, Lucier GW. Genetic risk and carcinogen exposure: a common inherited defect of the carcinogen-metabolism gene glutathione S-transferase M1 (GSTM1) that increases susceptibility to bladder cancer. J Natl Cancer Inst 1993; 85: 115964.
  • 25
    Trizna Z, Clayman GL, Spitz MR, Briggs KL, Goepfert H. Glutathione S-transferase genotypes as risk factors for head and neck cancer. Am J Surg 1995; 170: 499501.
  • 26
    Li R, Boerwinkle E, Olshan A, Chambless LE, Pankow JS, Tyroler HA. Glutathione S-transferase genotype as a susceptibility factor in smoking-related coronary heart disease. Atherosclerosis 2000; 149: 45162.
  • 27
    Arnett FC, Edworthy SM, Bloch DA, McShane DJ, Fries JF, Cooper NS. The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum 1988; 31: 31524.
  • 28
    Fries JF, Spitz P, Kraines RG, Holman HR. Measurement of patient outcome in arthritis. Arthritis Rheum 1980; 23: 13745.
  • 29
    Larsen A, Dale K, Eek M. Radiographic evaluation of rheumatoid arthritis and related conditions by standard reference films. Acta Radiol 1977; 18: 48191.
  • 30
    Wolfe F. A comparison of IgM rheumatoid factor by nephelometry and latex methods: clinical and laboratory significance. Arthritis Care Res 1998; 11: 8993.
  • 31
    Carstairs V, Morris R. Deprivation and health in Scotland. Aberdeen: Aberdeen University Press; 1991.
  • 31
    Carstairs V. Deprivation indices: their interpretation and use in relation to health. J Epidemiol Community Health 1995; 49 Suppl 2: S38.
  • 33
    Elexpuru-Camiruaga J, Buxton N, Kandula V, Dias PS, Campbell D, McIntosh J, et al. Susceptibility to astrocytoma and meningioma: influence of allelism of glutathione S-transferase (GSTT1 and GSTM1) and cytochrome P-450 (CYP2D6) loci. Cancer Res 1995; 55: 42379.
  • 34
    Holm S. A simple sequentially rejective multiple test procedure. Scand J Statistics 1979; 6: 65-70.
  • 35
    Gahlinger PM, Abramson JH. Computer programs for epidemiologic analysis: PEPI version 2. Stone Mountain, GA: USD, Inc; 1995.
  • 36
    Lunec J, Griffiths HR, Brailsford S. Oxygen free radicals denature human IgG and increase its reactivity with rheumatoid factor antibody. Scand J Rheumatol Suppl 1988; 75: 1407.
  • 37
    Swaak AJ, Kleinveld HA, Kloster JF, Hack CE. Possible role of free radical altered IgG in the etiopathogenesis of rheumatoid arthritis. Rheumatol Int 1989; 9: 16.
  • 38
    Heliövaara M, Aho K, Knekt P, Impivaara O, Reunanen A, Aromaa A. Coffee consumption, rheumatoid factor, and the risk of rheumatoid arthritis. Ann Rheum Dis 2000; 59: 6315.
  • 39
    McEntegart A, Morrison E, Capell HA, Duncan MR, Porter D, Madhok R. Effect of social deprivation on disease severity and outcome in patients with rheumatoid arthritis. Ann Rheum Dis 1997; 56: 4103.
  • 40
    ERAS Study Group. Socioeconomic deprivation and rheumatoid disease: What lessons for the health service? Ann Rheum Dis 2000; 59: 7949.
  • 41
    Harrison BJ, Silman AJ, Wiles NJ, Scott DGI, Symmons DPM. The association of cigarette smoking with disease outcome in patients with early inflammatory polyarthritis. Arthritis Rheum 2001; 44: 32330.