Study: NCT01342523

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full website - standard smokefree.gov website content
Description: Over 50 web pages of resources for quitting smoking, including interactive features and referral links

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Lite website - lite version of smokefree.gov
Description: Reduced version of the smokefree.gov website developed for the research; reduced number of web pages and external links (considered a placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full mailed booklet - NCI's detailed 36-page quit guide
Description: NCI's Clearing the Air brochure for preparing to quit, quitting and preventing relapse

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: brief mailed booklet - smaller version of NCI's booklet
Description: 12-page booklet developed by the investigators for the research (considered to be placebo intervention)