Table 1 Spirometery data obtained from analysis of real life smoking pattern.
| Tidal volume of an inhalation breath (litres) | Duration of a breath (seconds) | Interval duration between breaths (seconds) | ||||
|---|---|---|---|---|---|---|
| Median | 1.0 | 5.0 | 25.5 | |||
| SD | 0.47 | 2.4 | 10.2 | |||
| Number | 565 | 565 | 565 |