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1.
AIDS Care ; 24(2): 220-31, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-21780981

RESUMO

The purpose of this study was to assess the efficacy of brief group interventions, the positive choices intervention (PCI) and a standard intervention (SI), to increase condom use and intention to use condoms and to change condom use attitudes and beliefs. The design of the study was a randomized comparative trial. Participants were 347 heterosexual African American crack cocaine users living with HIV infection. Data were collected at intake and at three and nine months after intake. Behavioral and sociocognitive data were collected. Although both brief interventions achieved positive results, there were significant differences in outcomes between the interventions groups. The mean number of sex partners was significantly lower in the PCI group at three months. The proportion of those assigned to the PCI reporting sex with a paid partner significantly decreased, while the proportion disclosing their serostatus to their partners increased. There were no significant differences on these measures in the SI group. Significant time effects were found on measures of condom use, condom use attitudes, and self-efficacy beliefs. These measures significantly increased from intake to one month for both groups. One significant time-by-group effect was found. The measure of situational self-efficacy significantly increased in the PCI group, but not the SI group. Results also showed significant time-by-time effects. Mean condom use, intention to use condoms, attitudes, and condom use self-efficacy beliefs showed significant difference between three and nine months. However, there was no clear pattern of change. Findings suggest that brief group interventions designed to reduce HIV can help heterosexual drug users living with HIV infection increase condom use and intention to use condoms and change condom use attitudes and beliefs. A significant time-by-group effect was observed only for situational self-efficacy, suggesting limited additional efficacy of the PCI intervention. Given similar positive findings between groups, more research is needed to determine which components of brief interventions produce changes in motivations and risk behaviors.


Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV , Educação em Saúde/métodos , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde/métodos , Sexo Seguro/psicologia , Adulto , Transtornos Relacionados ao Uso de Cocaína/psicologia , Cocaína Crack , Feminino , Infecções por HIV/prevenção & controle , Infecções por HIV/psicologia , Heterossexualidade , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Assunção de Riscos , Adulto Jovem
2.
Int J Behav Med ; 19(2): 217-27, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21279493

RESUMO

BACKGROUND: The transtheoretical model is an influential theoretical model in health psychology, particularly in its application to smoking cessation research. Decisional Balance (DB) and Temptations are key constructs within this framework. PURPOSE: This study examines the psychometric properties of the DB and Temptations scales for smoking in a predominantly African-American sample of urban adolescent girls. METHODS: We used confirmatory factor analysis to compare the fit of previously published factor structures in smokers (n = 233) and nonsmokers (n = 598). External validity was tested by examining stages of change differences in the retained subscales. RESULTS: Results supported the internal and external validity of the DB scale for smokers and nonsmokers. Notably, previously published three-factor (Social Pros, Coping Pros, Cons) and four-factor (Cons split into "Aesthetic Cons" and "Health Cons") models fit equally well, with Cons subscales correlating highly. For Temptations, a previously published three-factor (Negative Affect, Social, Weight Control) hierarchical model fit well in nonsmokers. In smokers, previously published subscales were reliably measured, but their structural relationship remained unclear. Stage difference tests showed medium to large effect sizes of DB and Temptation subscales in smokers and nonsmokers. CONCLUSIONS: The use of DB was validated for both smokers and nonsmokers in this sample of primarily African-American adolescent females, where Cons can be combined or separated into "Aesthetic Cons" and "Health Cons" based on practical utility and preference. For Temptations, more research is needed but large stage differences in Temptations subscales underscore the importance of this concept in smoking acquisition and cessation.


Assuntos
Negro ou Afro-Americano/psicologia , Tomada de Decisões , Psicologia do Adolescente , Autoeficácia , Fumar/etnologia , Adolescente , Negro ou Afro-Americano/estatística & dados numéricos , Análise de Variância , Análise Fatorial , Feminino , Humanos , Modelos Psicológicos , Modelos Teóricos , Fumar/psicologia , População Urbana/estatística & dados numéricos
3.
J Immigr Minor Health ; 12(2): 206-14, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18030623

RESUMO

OBJECTIVES: This study analyzed the impact of immigration status on current tobacco use among adult Chinese-Americans living in Texas. METHODS: A survey was administered in Chinese and English in 2004 to assess tobacco use among Chinese-American adults using a stratified probability sample from two large metropolitan areas in Texas. Data were adjusted for unequal probability of selection and weighted to provide state-wide estimates for Chinese-Americans in Texas. RESULTS: The study sample was comprised of 1,054 Chinese-American adults. The overall current smoking rate was 11.1% with men's rates much higher (16.1%) than women's (6.7%). Lower household income and education increased smoking among males but more educated females had a tendency to smoke more. Although overall smoking rate among Chinese-Americans was significantly lower than the general Texas population (20.6%), smoking rate among recent immigrant men (<5 years in the U.S.) was alarmingly higher (28.0%). U.S.-born Chinese-American men's smoking rate (25.0%) is similar to that of their U.S.-born counterparts (23.7%). U.S.-born Chinese-American men initiated smoking 4 years earlier (13.8 years) than their immigrant counterparts. CONCLUSIONS: Although Chinese-Americans in Texas had overall lower smoking rates than the general population, the high smoking rates among recently immigrated men emphasize the need for cessation activities targeting this group.


Assuntos
Asiático/estatística & dados numéricos , Emigrantes e Imigrantes/estatística & dados numéricos , Abandono do Hábito de Fumar/estatística & dados numéricos , Tabagismo/epidemiologia , Adolescente , Adulto , Idoso , China/etnologia , Intervalos de Confiança , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prevalência , Psicometria , Fatores Sexuais , Inquéritos e Questionários , Texas/epidemiologia , Estados Unidos/epidemiologia , Adulto Jovem
4.
Arch Sex Behav ; 38(1): 149-58, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18574684

RESUMO

This study examined how condom use attitude, self-efficacy, and partner intimacy related to five stages of consistent condom use. Interview data were collected from sexually active, heterosexual, African-American crack cocaine smokers (N = 366). Dependent measures assessed both the participants' own responses and their perceptions about their last sex partner's own personal condom use attitude and participants' condom use self-efficacy expectations. Partner intimacy was assessed both as a continuous attitudinal and as a discrete relationship measure. Less than 10% were classified as consistent condom users. Two thirds of inconsistent users were in the Precontemplation (PC) stage. The contemplation (C) and preparation (P) stages were equal among the remainder of the inconsistent condom users. Higher partner intimacy reduced modestly readiness for consistent condom use. The stage but not the intimacy group was related to the condom use attitudes and self-efficacy measures. Last partners' perceived own negative attitudes were significantly related to the stages of consistent condom use and was especially low in the action (A) and maintenance (M) stages. Participants' own negative attitudes were unrelated to the stages. Of the self-efficacy measures, both participants' performance and situational condom use self-efficacies increased significantly after the PC stage and were highest in the P, A, and M stages. However, situational self-efficacy accounted for most of performance self-efficacy variance. In sum, consistent condom use was rare. A partner's attitudes and the participants' own situational self-efficacy expectations, rather than intimacy, determined the readiness to adopt consistent condom use.


Assuntos
Negro ou Afro-Americano/psicologia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Preservativos , Cocaína Crack , Autoeficácia , Parceiros Sexuais/psicologia , Adolescente , Adulto , Análise de Variância , Atitude Frente a Saúde , Feminino , Humanos , Relações Interpessoais , Entrevistas como Assunto , Masculino , Sexo Seguro/psicologia , Adulto Jovem
5.
Prev Med ; 47(2): 194-9, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18565577

RESUMO

OBJECTIVES: To determine the efficacy of providing online cessation intervention for college smokers. METHODS: This is a two-group randomized controlled trial. The intervention group received $10 weekly incentives to visit an online college life magazine that provided personalized smoking cessation messages and peer email support. Evaluation assessments occurred at baseline and 8, 20, and 30 weeks after enrollment. The primary outcome is self-reported 30-day abstinence at week 30. Carbon monoxide (CO) breath testing was performed for participants reporting 30-day abstinence at week 30. RESULTS: Five-hundred and seventeen college smokers at the University of Minnesota were enrolled via internet health screening (control=260, intervention=257) in the fall of 2004. Intervention participants completed an average of 18.9 (SD 2.5) of 20 weekly website visits over the course of the study. The rate of 30-day abstinence at week 30 was higher for the intervention compared to the control group (41% vs. 23%, p<0.001). CO testing showed low rates of under-reporting. There was no difference in self-reported 6-month prolonged abstinence measured at week 30. CONCLUSION: Providing personalized smoking cessation messages as part of a general interest online college life magazine increased 30-day abstinence by the end of this two semester intervention.


Assuntos
Internet , Abandono do Hábito de Fumar/métodos , Fumar/epidemiologia , Estudantes , Adolescente , Adulto , Feminino , Humanos , Masculino , Minnesota/epidemiologia , Motivação , Universidades
6.
Nicotine Tob Res ; 9 Suppl 1: S11-8, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17365722

RESUMO

Internet-based cessation programs are promising. However, little information exists on how to recruit college smokers to participate in online interventions. Two studies assessed the feasibility of Internet health screening as a recruitment strategy for college smokers. The Internet Survey Study compared Internet (n = 735), mail (n = 1,490), and phone (n = 550) surveys as means to identify college smokers. The RealU Recruitment Study described the use of an Internet-based general health screening survey (N = 25,000) to recruit for an online cessation trial. The Internet Survey Study showed that, despite large differences in response rates (Internet = 38%, mail = 47%, phone = 90%; p<.001), the rates of past-month tobacco use were similar (Internet = 35%, mail = 38%, phone = 34%; p = .35). Among past-month users, a greater proportion reported daily use on the Internet (33%) and phone (37%) surveys versus the mail survey (23%, p = .007). In the RealU Recruitment Study, 517 college smokers were recruited in 1 week. The Internet survey response rate was 26%, the prevalence of current smoking was 29%, the eligibility rate was 87%, and the enrollment rate was 32% (517/1,618). Internet health screening can be used to quickly identify and enroll large numbers of college smokers in an online smoking cessation intervention.


Assuntos
Internet , Seleção de Pacientes , Abandono do Hábito de Fumar/métodos , Fumar , Estudantes , Adolescente , Adulto , Estudos de Viabilidade , Feminino , Inquéritos Epidemiológicos , Humanos , Entrevistas como Assunto , Masculino , Programas de Rastreamento/métodos , Minnesota , Serviços Postais , Abandono do Hábito de Fumar/estatística & dados numéricos , Universidades
7.
Addict Behav ; 31(8): 1363-72, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16412579

RESUMO

The Processes of Change are the cognitions, behaviors, and emotions that people employ to change their behaviors. However, the processes of change remain the least studied dimension of the transtheoretical model. The present study presents a psychometric evaluation of the short form of the processes of change inventory for smoking cessation in an adolescent sample of 798 ninth-grade smokers from 22 Rhode Island high schools. The majority of the sample was white (87.2%), split approximately evenly as regards to gender (48.1% female), with an average age of 14.3 (SD=0.6) years of age. The same hierarchical model established on the adult sample was fit to the 20-item inventory. This model included 10 primary factors representing the processes of change and two second order factors that grouped the processes into five behavioral and five experiential processes of change. Model fit indices (RMSEA=0.08, CFI=0.92) supported the hypothesized structure. External validation was established by testing for stage differences in the use of the ten processes. A significant MANOVA (F(4,793)=18.517, p<0.001) and separate ANOVAs demonstrated that the use of all ten processes increased across the stages, as predicted by the transtheoretical model of behavior change. The processes of change help guide researchers, clinicians, and intervention program developers towards effective strategies to assist individuals at all stages of change progress towards healthier behaviors.


Assuntos
Comportamento do Adolescente/psicologia , Modelos Psicológicos , Abandono do Hábito de Fumar/psicologia , Fumar/psicologia , Estudantes , Adolescente , Análise de Variância , Feminino , Humanos , Masculino , Psicometria , Reprodutibilidade dos Testes
8.
Nicotine Tob Res ; 8 Suppl 1: S7-12, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17491165

RESUMO

High rates of Internet use among young adults make online intervention with this population particularly attractive. However, low adherence rates limit the exposure to and the potential effectiveness of these programs. This study identifies strategies for increasing adherence by examining the rates of participation for a 5-week beta (pilot) version and final version of the RealU Web site, an online intervention for college smokers. Three modifications from the beta to the RealU Web site were (a) changing format from a smoking cessation Web site to an online college life magazine, (b) providing proactive peer e-mail support, and (c) adopting a more linear site structure. Participants were recruited via Internet health screening and received US$10 for completing weekly study activities. Enrollment among eligible smokers was higher for the beta compared with the RealU intervention (47/69, 68.1% vs. 517/1618, 32.0%, p<.001), but participants did not differ in terms of age, gender, or past 30-day cigarette or alcohol use. Participation fell sharply during the beta test (53% in week 1 to 26% by week 5) compared with the RealU average of 95% (range 89% to 98%). Participation during each study's final week was much higher in the RealU (93% week 20) compared with the beta (26% week 5, p<.001). After 5 weeks, self-reported 30-day abstinence was higher for RealU intervention participants (16.0%) compared with the beta participants (4.3%, p=.03). The modifications from the beta to RealU Web site described above resulted in high rates of sustained participation over 20 weeks.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Internet/estatística & dados numéricos , Cooperação do Paciente/estatística & dados numéricos , Educação de Pacientes como Assunto/métodos , Abandono do Hábito de Fumar/métodos , Prevenção do Hábito de Fumar , Estudantes , Adulto , Intervalos de Confiança , Feminino , Humanos , Masculino , Razão de Chances , Pacientes Desistentes do Tratamento/estatística & dados numéricos , Fumar/epidemiologia , Síndrome de Abstinência a Substâncias/prevenção & controle , Inquéritos e Questionários , Tabagismo/prevenção & controle , Estados Unidos/epidemiologia
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