Respondent sequence number
Status code for ENO exam
Comment for ENO exams not done
Breathing problem require oxygen?
Problem taking deep breath?
Smoked last hour?
Exercised strenuously last hour?
Ate or drink last hour?
Ate NO-rich vegetables, 3 hours?
Ate NO-rich rich meats, 3 hours?
Used oral or inhaled steroids, 2 days?
Cough, cold, resp illness, 7 days?
Total number of exhalation attempts
Trial 1 result status
Trial 1 FENO Measurement (ppb)
Trial 2 result status
Trial 2 FENO Measurement (ppb)
Trial 3 result status
Trial 3 FENO Measurement (ppb)
Trial 4 result status
Trial 4 FENO Measurement (ppb)
Mean, 2 reproducible FENO measures (ppb)