for both white and nonwhite farmers , proportional mortality ratios ( pmrs ) were elevated for tuberculosis ( whites , 1.6 ; nonwhites , 1.7 ) , diseases of the skin and subcutaneous tissue ( whites , 2.5 ; nonwhites , 1.5 ) , and external causes ( whites , 1.2 ; nonwhites , 1.1 ) and were decreased for cancers of the esophagus ( whites and nonwhites , 0.5 ) and large intestine and rectum ( whites and nonwhites , 0.7 ) .
C0021851
large
C0034896
rectum