A Prospectively Observational Study to Investigate the Epidemiology and Patient Profile of Chronic Cough in Chinese Respiratory Outpatient Department

Study type

• Study type:
  Non-interventional study
• Scope of the study:
  Disease epidemiology

Non-interventional study

• Non-interventional study design:
  Cross-sectional

Study drug and medical condition

• Medical condition to be studied:
  Cough

Population studied

• Age groups:
  Adults (18 to < 46 years)

  Adults (46 to < 65 years)

  Adults (65 to < 75 years)

  Adults (75 to < 85 years)

  Adults (85 years and over)
• Estimated number of subjects:
  600

Study design details

• Main study objective:
  To investigate the disease prevalence and patient profile of chronic cough in China tertiary first-class Hospital Respiratory Outpatient Department.
• Outcomes:
  The prevalence of chronic cough among Chinese adult patients referring to Respiratory Outpatient Department of selected tertiary first-class hospital.
• Data analysis plan:
  This is a non-interventional study with descriptive purposes and no statistical hypotheses testing will be performed. For the description of the sample, quantitative variables will be expressed as mean and standard deviation (SD), or median and interquartile range (IQR) where appropriate, qualitative variables will be described as frequencies or percentages, with 95% confidence intervals when necessary. Subgroup factors will include age group, gender, season and region. Subgroup analysis will use the same methodology as general population. Any additional analysis will be documented in a separated statistical analysis plan (SAP).