... case–control study was conducted to investigatethe relationship between smoking and rheumatoid arthritis, and to investigate formally the interaction between sex, smoking, and risk for developing rheumatoid ... articleSmoking–gender interaction and risk for rheumatoid arthritisEswar Krishnan1, Tuulikki Sokka2,3, Pekka Hannonen21Department of Medicine, Stanford University, Palo Alto, California, USA2Jyväskylä ... H: Smoking, rheumatoid factor isotypes and severity of rheumatoid arthritis. Rheumatology (Oxford) 2000,39:1202-1205.10. Dai WS, Gutai JP, Kuller LH, Cauley JA: Cigarette smoking and serum sex...