Document x5BRxKZRYjZOQ25dgLr0g1KQJ

January 4,1035 8 Of the 64 persons given physical examination and diagnosed as having positive asbestosis, only 8 were entirely free from symptoms, while 10 out of 37 with doubtful and 7 out of 20 with negative diag noses were free from symptoms. Dyspnoea and cough wore the symptoms most complained of, but none of these cases exhibited tho urgent or evident type of "short wind" seen in true silicosis. Several of those classed as negative stated that they were "short winded" and were so recorded, but too much emphasis should not be placed i on statements of subjective symptoms. During the progress of the study, physicians who were practicing in the communities whore asbestos workers lived were questioned and stated that they did not a find an unusual amount of tuberculosis among these workers. Tho contrast between this state of affairs and that found in a community with a silicosis hazard is noteworthy. 'i The incidence of tuberculosis (based upon X-ray films) is given in table 3; 40 of the 67 examined had less than 15 years of employ ment in the industry. Table 3.--Incidence of tuberculosis ;! Positive Doubtful Negative Tuberculosis (healed).......... ................................................................. 7 11 67 1 0 30 20 > This case was diatnosod as probably active on tho X-my nudities. Table 4 gives information as to physical signs of chest trouble. Table 4.--Chest findings Positive Doubtful Negative Physical signs of chest trouble............................................................... No physical signs-..-................... ............ ............... .......................... Not examined............................................ ......... ................................. Total............................................................................................... 1 At least fl of these showod no evidence associated with asbestosis. * 2 of these not associated with usual signs found with asbestosis. ' 0 of these not associated with usual signs of asbestosis. 1 33 31 3 *9 28 2 30 *7 13 0 20 What significance, if any, can be attached to the presence of "asbestos corns" on the hands of workers appears doubtful, as IS percent of the positives (12 out of 64) and 15 percent of the others (doubtful, 7 out of 37, negative, 2 out of 20) showed such corns. Each roentgenologist who reviewed the X-ray films called attention to the fact that these films indicated a very unusual incidence of enlargement of the hqart. It is probable that this is a compensatory enlargement due to the additional work put upon tho hoart in efforts to pump blood through the fibro sufficient attention has been paid 1 upon the heart. Many workers had changed fro from one plant to another during asbestos industry. Since only tli time of this survey in the variou no way of knowing tho average i inhaled by these people over the j quently, it is not possible to corr amounts of dust exposure. IKSURA.Vi To throw light on the relations nary tuberculosis, an analysis of manent disability claims was mac group insurance and having availi There were 2,099 lives involved years. The death claims are so elusions cannot be reached from a same is true of the sickness cla: number of claims for respiratory < studied but low for the others, a experience of 1927. However, du first part of 1929 there was an epic The records of ono establishmc death claims and 8 of 10 permnne listed as due to pulmonary tubere ordinate amount of tuberculosis ft the employees were Negroes, and ally high in this section of the c diagnosing pneumoconiosis and tuberculosis, these claims were sti who had treated the individuals and sanatorium records, indue investigated, with the following n Death claims: 1. A typist, not exposed intestinal tuberculosis. . 2. Colored male, age 27; months; died of pulmonary U was in sanatorium 10 mont! mann. No evidence of asbo 3. Colored male, age 32; v 7 months; died of pulinon; hospital. Cavitation both lu