| Literature DB >> 25224153 |
Joanna E Cohen1, Jingyan Yang2, Elisabeth A Donaldson2.
Abstract
OBJECTIVE: This study assessed cessation and brand switching among smokers in Ontario, Canada after tobacco companies' voluntary removal of 'light' and 'mild' descriptors from cigarette packages.Entities:
Keywords: Smoking; Smoking cessation; Tobacco products
Mesh:
Year: 2014 PMID: 25224153 PMCID: PMC4340068 DOI: 10.1016/j.ypmed.2014.08.037
Source DB: PubMed Journal: Prev Med ISSN: 0091-7435 Impact factor: 4.018
Smoker characteristics by brand variant type at baseline, January 2006 (n = 632), Ontario, Canada.
| All brand type respondents (n = 632) | Regular (n = 189) | Light (n = 443) | P | |
|---|---|---|---|---|
| Gender, % | ||||
| Female | 349 | 30.9 | 69.1 | |
| Male | 283 | 28.6 | 71.4 | 0.526 |
| Age, mean (SD), years | 628 | 44.6 (15.9) | 42.3 (14.4) | 0.075 |
| Education, % | ||||
| High school degree or less | 305 | 36.7 | 63.3 | |
| At least some college | 321 | 23.4 | 76.6 | <0.0001 |
| Employment status | ||||
| Employed | 288 | 24.7 | 75.4 | 0.006 |
| Unemployed | 150 | 37.3 | 62.7 | |
| Purchase location, % | ||||
| Convenience store | 319 | 24.8 | 75.2 | |
| Gas station | 116 | 27.6 | 72.4 | 0.002 |
| Native reserve | 90 | 44.4 | 55.6 | |
| Other (e.g. supermarket, discount store) | 96 | 34.4 | 65.6 | |
| Heaviness of smoking index, % | ||||
| 0–2 | 256 | 24.6 | 75.4 | |
| 3–4 | 211 | 33.6 | 66.4 | <0.001 |
| 5–6 | 86 | 45.4 | 54.6 | |
| Perceived health | ||||
| Excellent/very good | 296 | 29.1 | 70.9 | |
| Good | 224 | 29.9 | 70.1 | 0.338 |
| Fair/poor | 111 | 32.4 | 67.6 | |
Employed includes respondents reporting full-time, part-time or self-employment. Unemployed includes: unemployed, student, retired, homemaker, or on disability.
Perceived health was an ordinal variable assessed through self-report of general health on a five-item scale.
Chi-square test.
Student’s t-test.
Kruskal–Wallis test.
Quitting and brand variant type during prior follow-up interview, 2006–2008, Ontario, Canada.
| Quit | Baseline (Jan–June 2006) | Follow-up 1 (July–Dec 2006)
| Follow-up 2 (Jan–June 2007)
| Follow-up 3 (July–Dec 2007)
| Follow-up 4 (Jan–June 2008)
| Follow-up 5 (July–Dec 2008)
| |
|---|---|---|---|---|---|---|---|
| n = 580
| n = 487
| n = 427
| n = 390
| n = 326
| |||
| % (n) | % (n) | % (n) | % (n) | % (n) | |||
| Regular | Yes | – | 2.7 (5) | 7.4 (12) | 1.2 (2) | 8.4 (13) | 3.4 (4) |
| No | – | 97.3 (183) | 92.6 (149) | 98.8 (169) | 91.6 (141) | 96.6 (113) | |
| Light | Yes | – | 6.6 (26) | 6.7 (21) | 4.8 (10) | 9.5 (14) | 4.7 (5) |
| No | – | 93.4 (366) | 93.3 (293) | 95.2 (198) | 90.5 (133) | 95.3 (102) | |
| Light replacement | Yes | – | – | – | – | 4.5 (4) | 4.9 (5) |
| No | – | – | 100 (12) | 100 (48) | 95.5 (85) | 95.1 (97) | |
| P-value | 0.024 | 0.049 | 0.936 | 0.068 | 0.374 |
Baseline interviews were conducted between January and June 2006. Follow-up 1 interviews were conducted between July and December 2006, follow-up 2 between January and June 2007, follow-up 3 between July and December 2007, follow-up 4 between January and June 2008, and follow-up 5 interviews were conducted between July and December 2008.
Quit is a binary variable comparing respondents who were classified as a former smoker to respondents who were current smokers. Participants who reported having quit smoking at one of the follow-ups were not excluded from further follow-ups. Former smokers were defined as those who smoked more than 100 cigarettes in their lifetime but did not smoke a cigarette in the past 6 months (i.e. since the prior follow-up interview).
Previous brand type information was not collected because this was the baseline interview.
Prevalence of brand variant type by follow-up visit, 2006–2008, Ontario, Canada.
| Baseline (Jan–June 2006) | Follow-up 1 (July–Dec 2006) | Follow-up 2 | Follow-up 3 | Follow-up 4 (Jan–June 2008) | Follow-up 5 (July–Dec 2008) | |
|---|---|---|---|---|---|---|
| Total brand type respondents | 632 | 516 | 446 | 407 | 362 | 316 |
| Regular % (n) | 29.9 (189) | 34.1 (176) | 32.9 (147) | 41.3 (168) | 39.2 (142) | 36.1 (114) |
| Light % (n) | 70.1 (443) | 65.9 (340) | 64.4 (287) | 46.9 (191) | 37.3 (135) | 33.2 (105) |
| Light replacement % (n) | – | – | 2.7 (12) | 11.8 (48) | 23.5 (85) | 30.7 (97) |
This table includes respondents for whom brand type data were available during each follow-up visit, demonstrating the prevalence of use at each visit.
The voluntary ban to remove misleading descriptors was implemented between January 2007 and December 2007, during Follow-up 2 and Follow-up 3.
Odds ratios from a longitudinal multinomial model for brand type preference, 2006–2008, Ontario, Canada.
| Regular vs. Light (ref)
| Light Replacement vs. Light (ref)
| |||
|---|---|---|---|---|
| Variable | Adj. Odds Ratio | 95% CI | Adj. Odds Ratio | 95% CI |
| Follow-Up Interview | ||||
| Older adults (≥30 years) | Ref. | – | Ref. | – |
| Young adults (18–29 years) | 1.19 | (0.42, 3.33) | 1.30 | (0.42, 4.00) |
| Males | Ref. | – | Ref. | – |
| Females | 0.89 | (0.41, 1.93) | 0.83 | (0.37, 1.89) |
| High school degree or less | Ref. | – | Ref. | – |
| At least some college | 0.75 | (0.33, 1.73) | ||
| Unemployed | Ref. | – | Ref. | – |
| Employed | 1.85 | (0.82, 4.14) | 1.95 | (0.83, 4.63) |
| 0–2 | Ref. | – | Ref. | – |
| 3–4 | 0.86 | (0.48, 1.54) | ||
| 5–6 | 0.75 | (0.28, 1.98) | ||
| Excellent/very good | Ref. | – | Ref. | – |
| Good | 0.67 | (0.43, 1.05) | ||
| Fair/poor | 0.93 | (0.48, 1.80) | 0.46 | (0.21, 1.01) |
| Did not quit | Ref. | – | Ref. | – |
| Quit | 0.73 | (0.22, 2.41) | 0.67 | (0.15, 2.88) |
Quit is a binary variable defined as respondents who become former smokers during the study or those who smoked more than 100+ cigarettes in their lifetime but did not smoke in the past 6 months.