text: After adjusting for age, sex, and BMI, dyspnea was 
  associated with a reduced likelihood of current 
  employment (OR, 0.993; P < .001), increased 
  absenteeism (coefﬁcient, 0.066; P < .001), increased 
  presenteeism (coefﬁcient, 0.349; P < .001), higher work 
  
  Discussion 
  Our study explored dyspnea in community-based adults 
  with undiagnosed respiratory symptoms identiﬁed via 
  case ﬁnding. Surprisingly, we found that the dyspnea 
  experienced by those with PRISm had a greater impact 
  on their activities and health status than those with 
  newly diagnosed COPD or asthma. 
  TABLE 5 ] Dyspnea Regressed on Spirometry Disease 
  Group 
  
  The prevalence of individuals who were obese and 
  morbidly obese in the PRISm group partially explains 
  the between-group difference in dyspnea. The excess 
  dyspnea seen in the PRISm group when compared with 
  the normal spirometry group is partly explained by 
  patient-speciﬁc risk factors, including BMI, which 
  shrink the mean dyspnea differential between the groups 
  from 11.2 to 5.5 points (Tables 3-6). The remaining 5.5- 
  point difference indicates that PRISm patients have 
  excess dyspnea relative to symptomatic individuals with 
  normal spirometry for additional reasons other than 
  obesity. 