Facilitating Adolescent Smoking: Who Provides the Cigarettes?

2005 ◽  
Vol 19 (5) ◽  
pp. 355-360 ◽  
Author(s):  
Martha M. White ◽  
Elizabeth A. Gilpin ◽  
Sherry L. Emery ◽  
John P. Pierce

Purpose. Most adolescent smokers obtain cigarettes through social sources. We examine the extent to which cigarettes are provided by facilitators of legal age to purchase cigarettes. Design. Analyses of data from the 1999 California Tobacco Survey, a large population-based, random-digit–dialed telephone survey, are reported. Setting. California. Subjects. Data were from a subset of 1239 adolescent (12–17 years) respondents who reported ever having smoked a cigarette. The response rate for all adolescents selected for interview was 75.5%. Measures. We describe cigarette providers to adolescents in social (cigarettes given to the adolescent) and economic (someone else buys cigarettes for the adolescent) transactions by the reported facilitator's age. Results. Of the 82.2% ± 2.6% of adolescents who had ever smoked who usually obtained cigarettes from others, 21.6% ± 2.5% used economic transactions; most (60.6% ± 3.4%) were given cigarettes. The majority (73.3% ± 3.6%) of those relying on social sources were given cigarettes by someone <18 years of age; very few were given cigarettes by someone 21+ years old. Most (90.4% ± 2.0%) usually given cigarettes reported friends as facilitators. Of those who relied on economic transactions, 56.1% ± 6.6% reported facilitators who were 18- to 20-year-olds, another 24.7% ±6.3% had suppliers ≥21 years of age. Altogether, 80.8% ± 5.8% of facilitators in economic transactions were ≥18 years of age. Conclusions. Until peer approval of smoking and sharing cigarettes and adult facilitation of adolescent smoking is reduced, it will be difficult to significantly reduce adolescents' access to cigarettes.

Twin Research ◽  
2001 ◽  
Vol 4 (4) ◽  
pp. 242-250 ◽  
Author(s):  
Myles G. Cockburn ◽  
Ann S. Hamilton ◽  
John Zadnick ◽  
Wendy Cozen ◽  
Thomas M. Mack

AbstractWe have established a large cohort of twins to facilitate studies of the role of genetics and environment in the development of disease. The cohort has been derived from all multiple births occurring in California between 1908–82 (256,616 in total). We report here on our efforts to contact these twins and their completion of a detailed 16 page risk factor questionnaire. Addresses of the individuals were obtained by linking the birth records with the California Department of Motor Vehicles (DMV) roster of licensees. To date this has been completed for twins born between 1908 and 1972 (200,589 individuals). The linkage has revealed 112,468 matches and, because of less complete DMV records in some years, was less successful in older females than in younger females and all males. Over 41,000 twins have participated by completing the questionnaire. Based on estimates of numbers of individuals receiving a questionnaire, we estimate our crude response rate to be between 42.2% and 49.6%, highest among females in their 40s (62.8%). We describe the representativeness of the twins in the original birth cohort, those identified by the linkage, and those completing the questionnaire. Compared to the 1990 resident population of California-born resident singletons, the respondents were of similar age, sex, race and residential distribution (for although we were able to locate fewer older females, they had a higher response rate), but were less likely to have been educated for more than 12 years. We provide a brief synopsis of studies nested within this cohort. We also elucidate our plans for expanding the cohort in the near future.


2021 ◽  
Vol 1 (1) ◽  
pp. 21-32
Author(s):  
Robert Tortora

This paper reviews response trends over 24 consecutive quarters of a National Random Digit Dial telephone survey. Trends for response rates and refusal rates are studied as well as the components of response rate, namely, contact, cooperation and completion rates. In addition other rates, including answering machine, busy and no answer are studied. While refusal rates declined over the six year period, contact and cooperation rates significantly declined causing response rates to decline. Answering machine rates and busy rates also showed a significant increase over time. Finally, correlation’s among the variables of interest are presented. The response rate is negatively correlated with the busy rate, the answering machine rate and the no answer rate. Implications of the above trends are discussed.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Jorge Matías-Guiu ◽  
Pedro Jesús Serrano-Castro ◽  
José Ángel Mauri-Llerda ◽  
Francisco José Hernández-Ramos ◽  
Juan Carlos Sánchez-Alvarez ◽  
...  

Descriptive epidemiology research involves collecting data from large numbers of subjects. Obtaining these data requires approaches designed to achieve maximum participation or response rates among respondents possessing the desired information. We analyze participation and response rates in a population-based epidemiological study though a telephone survey and identify factors implicated in consenting to participate. Rates found exceeded those reported in the literature and they were higher for afternoon calls than for morning calls. Women and subjects older than 40 years were the most likely to answer the telephone. The study identified geographical differences, with higher RRs in districts in southern Spain that are not considered urbanized. This information may be helpful for designing more efficient community epidemiology projects.


2020 ◽  
Author(s):  
Fu-Rong Li ◽  
Pei-Liang Chen ◽  
Xin Cheng ◽  
Hai-Lian Yang ◽  
Wen-Fang Zhong ◽  
...  

2021 ◽  
pp. 1-8
Author(s):  
Charles Kassardjian ◽  
Jessica Widdifield ◽  
J. Michael Paterson ◽  
Alexander Kopp ◽  
Chenthila Nagamuthu ◽  
...  

Background: Prednisone is a common treatment for myasthenia gravis (MG), and osteoporosis is a known potential risk of chronic prednisone therapy. Objective: Our aim was to evaluate the risk of serious fractures in a population-based cohort of MG patients. Methods: An inception cohort of patients with MG was identified from administrative health data in Ontario, Canada between April 1, 2002 and December 31, 2015. For each MG patient, we matched 4 general population comparators based on age, sex, and region of residence. Fractures were identified through emergency department and hospitalization data. Crude overall rates and sex-specific rates of fractures were calculated for the MG and comparator groups, as well as rates of specific fractures. Adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox regression. Results: Among 3,823 incident MG patients (followed for a mean of 5 years), 188 (4.9%) experienced a fracture compared with 741 (4.8%) fractures amongst 15,292 matched comparators. Crude fracture rates were not different between the MG cohort and matched comparators (8.71 vs. 7.98 per 1000 patient years), overall and in men and women separately. After controlling for multiple covariates, MG patients had a significantly lower risk of fracture than comparators (HR 0.74, 95% CI 0.63–0.88). Conclusions: In this large, population-based cohort of incident MG patients, MG patients were at lower risk of a major fracture than comparators. The reasons for this finding are unclear but may highlight the importance osteoporosis prevention.


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