Table 1—

Subject characteristics

ControlsChronic cough
Number68
Male %1±172±25
Age yrs27±337±5
Duration of cough yrs7±5
FEV1 % pred100±2105±6
Smoking
 Never58
 Ex00
 Current10
  • Data are presented as mean±sem

  • FEV1: forced expiratory volume in one second