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Table 3 Respiratory symptoms

From: Subclinical interstitial lung damage in workers exposed to indium compounds

  Current smokers Ex or never smoked Total p
Respiratory symptoms N % N % N %  
No 5 33.3 11 57.9 16 47.1 0.1542
Yes 10 66.7 8 41.1 18 52.9  
      34   
  1. Abbreviations: N number of subjects, P probability by Chi-square test, Respiratory symptoms: at least one or more symptoms of cough, sputum, chest discomfort, palpitation, and wheezing.