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| IARC | International Agency for Research on Cancer |
| ICD | International Classification of Diseases |
| Idling Cigarette | cigarette that is lit but not currently being smoked, e.g., left burning in an ashtray, which produces a form of secondhand smoke called sidestream smoke |
| Ignition Propensity Standards | since October 2005, federal regulations in Canada requiring cigarettes to self-extinguish if left unattended as a means of preventing firesAvailable at: http://www.hc-sc.gc.ca/hc-ps/pubs/tobac-tabac/ignition-incend/index-eng.php; accessed Oct. 5, 2009. |
| IHD | ischemic (or ischaemic) heart disease, synonym for Coronary Heart Disease (CHD) |
| Illegal Cigarettes | general term for cigarettes that are unlawfully manufactured or unlawfully sold, usually with tax evasion |
| Illicit Cigarettes | synonym for Illegal Cigarettes |
| Imperial Tobacco Canada Limited (ITL) | one of three major tobacco companies in Canada, the other two being JTI-McDonald Corporation and Rothmans, Benson & Hedges IncorporatedAvailable at: http://www.ocat.org/opposition/industry.html; accessed Feb. 9, 2009. |
| Implementation | (1) at the legislative level, the process and act of causing a tobacco control law to take effect, including penalties for non-compliance; (2) in RE-AIM, the fidelity of an intervention agent to a tobacco control protocol, including consistency of delivery and time and money spent |
| Implementation Date | date on which provisions of legislation come into force, e.g., the implementation date of the Smoke-Free Ontario Act was May 31, 2006 |
| Impulse Purchase | unplanned and sudden decision to buy a tobacco product |
| In-Store Advertising | advertising of tobacco products in a retail store, currently illegal in Canada under the 1997 federal Tobacco Act |
| In-Store Display | synonym for Retail Display |
| In-Store Signage | signs about tobacco products in a retail store, which under the Smoke-Free Ontario Act are restricted to three black-and-white signs of limited size per store indicating only that tobacco products are sold in the store |
| Incidence | (1) the number or rate of new cases, e.g., persons starting regular smoking, occurring in a defined population in a specified period of time (cf. Prevalence); (2) in tobacco industry documents, sometimes confused with prevalenceReference: Mills C, Stephens T, Wilkins K. Summary report of the workshop on data for monitoring tobacco use. Chronic Diseases in Canada 1994;15(3):105-110. |
| Indian Act | Canadian federal legislation first passed in 1876 and subsequently amended several times setting out certain federal obligations towards Aboriginal peoples and regulating the management of reservesAvailable at: http://laws.justice.gc.ca/en/showtdm/cs/I-5; accessed Feb. 4, 2009. |
| Indicator | (1) broadly, an observable or measurable characteristic; (2) in tobacco control, a measurement that reflects the status of a tobacco control program or system, revealing improvement, deterioration or no changeReference: Copley TT, Lovato CY, O’Connor S. Indicators for Monitoring Tobacco Control: A Resource for Decision-Makers, Evaluators and Researchers. On behalf of the National Advisory Group on Monitoring and Evaluation. Canadian Tobacco Control Research Initiative, Toronto, 2006. Available at: http://www.ahs.uwaterloo.ca/~manske/Tools/Copley%202006%20Core%20Indicators%20Report.pdf; accessed Mar. 13, 1009. |
| Infiltrating Smoke | secondhand smoke that infiltrates homes (especially multi-unit dwellings) from neighbouring units, common areas, other buildings or outdoor spaces |
| Informatics | the science of information, the practice of information processing and the engineering of information systems (see also Health Informatics (HI)) |
| Infraction | violation of a law |
| Ingredient Disclosure | required list of constituents, e.g., poisonous chemicals in tobacco smoke, reported to the government or made known to the consumer, e.g., on cigarette packagesAvailable at: http://www.hc-sc.gc.ca/hc-ps/pubs/tobac-tabac/tir-rft/report-eng.php; accessed Oct. 5, 2009. |
| Ingredient Regulation | legislation restricting toxic substances in tobacco smoke so that carcinogens and other poisons are at the lowest possible level of currently available productsReference: Pederson LL, Cohen J, McKenna M. Government Regulation of Tobacco Ingredients and Emissions. Special Report. Ontario Tobacco Research Unit, Toronto, January 2009. Available at: http://www.otru.org/pdf/special/special_prod_regulation.pdf; accessed Feb. 11, 2009. |
| Initiation | see Smoking Initiation |
| Innovation | in Diffusion of Innovation, an idea, practice or object that is perceived as new by an individual or other unit of adoption |
| Inputs | financial, human and other resources used to plan and set up a tobacco control programReference: Starr G, Rogers T, Schooley M, Porter S, Wiesen E, Jamison N. Key Outcome Indicators for Evaluating Comprehensive Tobacco Control Programs. Centers for Disease Control and Prevention, Atlanta, 2005. Available at: http://www.cdc.gov/tobacco/tobacco_control_programs/surveillance_evaluation/key_outcome/index.htm; accessed Feb. 12, 2009. |
| Inspection | authorized visit to a tobacco retail outlet, enclosed workplace or public place to see whether the premises meet official public health standards and comply with current legislation (e.g., regarding youth access ) and to issue warnings or charges for infractionsReference: Dubray J, Schwartz R, Garcia J, Bondy S, Victor JC. Formative evaluation of the Smoke-Free Ontario Act. Comparison of Baseline and Two Post-SFOA Measurements. Ontario Tobacco Research Unit, Toronto, November 2007. Available at: http://www.otru.org/pdf/special/special_nov2_2007.pdf; accessed Feb. 12, 2009. |
| Intention to Quit | plan or decision to quit smoking, often associated with a time limit, e.g., within 30 days or 6 months |
| Intention to Smoke | plan or decision to start smoking or continue smoking usually measured by self-report data and associated with a time limit, e.g., expect to smoke in the next 30 days or expect to smoke in the next 6 months |
| Internal Validity | the extent to which the effects observed in a study are truly caused by the treatment or exposure in the study sample rather than being due to other biasing effects or extraneous factors (cf. External Validity) |
| International Agency for Research on Cancer (IARC) | the World Health Organization’s leading source for information about cancer http://www.iarc.fr/ |
| International Classification of Diseases (ICD) | the World Health Organization’s international standard diagnostic classification for epidemiological, health management and clinical purposesAvailable at: http://www.who.int/classifications/icd/en; accessed Feb. 6, 2009. |
| International Tobacco Control Four Country Survey (ITC-4) | a theory-driven prospective international tobacco control survey carried out in four English-speaking countries, namely, Canada, the United States, the United Kingdom and Australia, with more than 2000 longitudinal respondents per countryReference: Thompson ME, Fong GT, Hammond D, Boudreau C, Driezen P, Hyland A, Borland R, Cummings JM, Hastings GB, Siahpush M, Mackintosh AM, Laux FL. Methods of the International Tobacco Control Four Country Survey. Tobacco Control 2006;15(Supplement 3):iii12-iii18. |
| Internet Availability | sale of tobacco products via the InternetReference: Ribisl KM. The potential of the internet as a medium to encourage and discourage youth tobacco use. Tobacco Control 2003;12(Supplement 1):48-59. |
| Intervention | see Tobacco Control Intervention |
| Involuntary Smoking | synonym for Passive Smoking |
| IOM | (U.S.) Institute of Medicine http://www.iom.edu/ |
| Ischemic Heart Disease | synonym for Coronary Heart Disease (CHD) |
| ITC-4 | International Tobacco Control Four Country Survey |
| ITL | Imperial Tobacco Canada Limited |
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The OTRU Glossary of Tobacco Control provides brief definitions of over 1,000 tobacco control terms, abbreviations and acronyms. Definitions are based on many sources including dictionaries, legislative texts, websites, reports, books, peer-reviewed journal articles and communications from tobacco control experts. A single definition often reflects material from more than one source.
While we have tried to be comprehensive in producing this resource, the language of tobacco control is constantly evolving and there may be relevant terms that are not listed or terms whose meanings may have changed.
Comments about the glossary or particular definitions are welcome and can be sent to lise_anglin@camh.net. For technical assistance, please contact sonja_johnston@camh.net