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Test-retest reliability for puff variables, nicotine, and smoking exposure.
| Variable | ICC | 95% CI |
|---|---|---|
| Total Puff Volume | .84 | [.75, .90] |
| Avg. Puff Volume | .89 | [.82, .93] |
| Avg. Puff Velocity | .79 | [.67, .87] |
| Avg. Puff Duration | .89 | [.82, .93] |
| Avg. IPI | .76 | [.59, .83] |
| CO Boost | .51 | [.29, .68] |
| Nicotine Boost | .55 | [.34, .70] |
Note. ICC= Intraclass Correlation Coefficient. CI= Confidence Interval. IPI= Interpuff Interval. CO= expired Carbon Monoxide.
