Irritation perception by strength usually smoked (January 1997)
| Total (British Columbia and Nova Scotia) | Medium and above* | Mid light and below* |
|---|---|---|
| *Sums are less than 100%, presumably because of non-response. | ||
| Less irritation | 15% | 18% |
| More irritation | 24% | 18% |
| No difference | 53% | 56% |