Table 2.
Matrix of time since the unsuccessful quit attempt started by the length of the quit attempt and percentages estimated failure to report for unaided attempts (n = 2,555).
| Length of unsuccessful quit attempt | |||||||
|---|---|---|---|---|---|---|---|
| <1 day | 1-7 days | 8-30 days | 31-60 days | 61-90 days | 91 days to 6 months | >6 months to 1 year | |
| Time since unsuccessful quit attempt started | |||||||
| 1-7 days | — | — | — | — | — | ||
| Raw n | 44 | 58 | |||||
| Standardised n | 176 | 232 | |||||
| % failure to report | — | — | |||||
| 8-30 days | — | — | — | — | |||
| Raw n | 46 | 109 | 118 | ||||
| Standardised n | 61 | 145 | 157 | ||||
| % failure to report | 65% | 38% | — | ||||
| 31-60 days | — | — | — | ||||
| Raw n | 32 | 88 | 136 | 59 | |||
| Standardised n | 32 | 88 | 136 | 59 | |||
| % failure to report | 82% | 62% | 13% | — | |||
| 61-90 days | — | — | |||||
| Raw n | 27 | 69 | 123 | 47 | 52 | ||
| Standardised n | 27 | 69 | 123 | 47 | 52 | ||
| % failure to report | 85% | 70% | 22% | 20% | — | ||
| 91 days to 6 months | — | ||||||
| Raw n | 18 | 142 | 190 | 89 | 60 | 69 | |
| Standardised n | 6 | 47 | 63 | 30 | 20 | 23 | |
| % failure to report | 97% | 80% | 60% | 49% | 62% | — | |
| >6 months to 1 year | |||||||
| Raw n | 61 | 116 | 213 | 87 | 102 | 119 | 281 |
| Standardised n | 10 | 19 | 36 | 14 | 17 | 20 | 47 |
| % failure to report | 94% | 92% | 77% | 76% | 67% | 13% | — |
Raw n: the number of respondents indicating an unsuccessful quit attempt; Standardised n: the estimated number of unsuccessful quit attempts based on our calculations.