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Table 8 Characteristics during life in prison help participants quit smoking

From: Prisoners and cigarettes or ‘imprisoned in cigarettes’? What helps prisoners quit smoking?

Characteristics p-value Ex-smokers Smokers
   Mean S.D. Mean S.D.
Number of cellmates <.001 3.9 3.4 7.3 3.5
Number of smokers in cell <.001 2.8 3.2 6.3 3.2
Length of sentence (months) .019 49.7 46.5 26.6 40.2