ANOVA results for withdrawal symptoms/smoking urges by time (pre vs post) and condition (flavoured vs non-flavoured) (n=143)
| Condition | Time | Condition × time | ||||
| F | P value | F | P value | F | P value | |
| Minnesota Nicotine Withdrawal Scale | ||||||
| Urges to smoke a waterpipe | <0.1 | n.s | 66.4 | <0.01 | 0.4 | n.s |
| Irritability/frustration/anger | <0.1 | n.s | 1.1 | n.s | 0.1 | n.s |
| Anxious | 1.2 | n.s | 2.4 | n.s | 0.4 | n.s |
| Difficulty concentrating | 2.1 | n.s | 7.2 | <0.01 | 1.5 | n.s |
| Restlessness | 1.8 | n.s | 0.2 | n.s | 0.5 | n.s |
| Hunger | 4.4 | <0.05 | 22.5 | <0.01 | 0.6 | n.s |
| Impatient | 2.5 | n.s | 0.4 | n.s | 0.2 | n.s |
| Craving a waterpipe/nicotine | 0.3 | n.s | 37.8 | <0.01 | <0.1 | n.s |
| Drowsiness | 1.8 | n.s | 40.4 | <0.01 | 2.7 | n.s |
| Depression/feeling blue | 1.4 | n.s | <0.1 | n.s | 0.4 | n.s |
| Desire for sweets | 1.6 | n.s | 3.9 | n.s | 0.5 | n.s |
| Questionnaire of Smoking Urges (QSU) | ||||||
| Factor 1* | 0.4 | n.s | 148.8 | <0.01 | 1 | n.s |
| Factor 2† | 1.2 | n.s | 43.2 | <0.01 | 0.2 | n.s |
*Intention to smoke.
†Anticipation of relief from withdrawal.
ns, non-significant.