Diurnal and seasonal variation of cough episodes in healthy young adults Academic Article uri icon


  • AbstractSetting: We developed an algorithm to assess recorded cough episodes and differentiate them from similar, non-cough sounds. Objective: To measure cough episodes in healthy young adults, cigarette smokers and non-smokers over a 24-hour recording period, during the course of normal activity. Design: The study subjects were students, aged 20–40 years old. 24-hour sound recordings were conducted by a portable recorder. Analysis used an algorithm that was developed and tested in the study. Results: Seventy students were recruited. Recordings included 2628 cough episodes in 1704 h of recording. The cough detection algorithm successfully detected 88.5% of recorded cough episodes and 95.6% of non-cough sounds. There was a clear tendency for more coughs among smokers. Autumn was the season with the highest mean cough episodes per day (58.65), while summer had the lowest (14.19). There was a strong correlation between self-reported cough episodes and recorded coughs. Cough episodes were significantly more f...

publication date

  • January 1, 2016