Dataset Information

Offering on-site mammography in workplaces improved screening rates: Cluster randomized controlled trial.

ABSTRACT:

Objectives

Despite evidence of breast cancer screening efficacy, the screening rate has remained less than 50% in Japan. This study aimed to evaluate the effect of an environmental approach offering on-site mammography in workplaces.

Methods

Supermarket stores were randomly assigned into two groups, the intervention group (leaflet and mammography) and the control group (leaflet). From May to July 2018, participants in the intervention group were given a leaflet informing them of the subsidies for breast cancer screening and offered the opportunity to have mammography in their workplaces. Participants in the control group were given the same leaflet, but had to arrange their own screening outside the workplace. The primary outcome was the breast cancer screening rate in 2018. The odds ratio (OR) and 95% confidence interval (CI) for having screening in the intervention group compared with the control group were estimated using multilevel logistic regression.

Results

We analyzed data from 1624 participants (mean age 53 years) from 25 supermarket stores (intervention: 8 stores, control: 17 stores). Among participants who had not attended screening in the previous year, the screening rate was 7% in the control group and 53% in the intervention group, with an adjusted OR (95% CI) of 14.22 (8.97-22.54). The effect was greater in those who had never attended screening before.

Conclusion

In a worksite-based cluster randomized controlled trial in Japanese supermarket stores, an environmental approach offering mammography in workplaces substantially increased the breast cancer screening rate within 1 year (UMIN000030465).

SUBMITTER: Shima A

PROVIDER: S-EPMC9950350 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Publications

Offering on-site mammography in workplaces improved screening rates: Cluster randomized controlled trial.

Shima Azusa A Tanaka Hideo H Okamura Tomonori T Nishikawa Tomofumi T Morino Ayumi A Godai Kayo K Tatsumi Yukako Y Kawahara Mizuki M Kiyohara Maiko M Kawatsu Yuichiro Y Kimura Takashi T Miyamatsu Naomi N

Journal of occupational health 20230101 1

<h4>Objectives</h4>Despite evidence of breast cancer screening efficacy, the screening rate has remained less than 50% in Japan. This study aimed to evaluate the effect of an environmental approach offering on-site mammography in workplaces.<h4>Methods</h4>Supermarket stores were randomly assigned into two groups, the intervention group (leaflet and mammography) and the control group (leaflet). From May to July 2018, participants in the intervention group were given a leaflet informing them of t ...[more]

PMID: 36823700

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Project description:ObjectiveTo compare several monetary incentive programmes for promoting smoking abstinence among employees who smoke at workplaces in a middle income country.DesignParallel group, open label, assessor blinded, cluster randomized controlled trial.SettingLarge industrial workplaces in metropolitan Bangkok, Thailand.ParticipantsEmployees who smoked cigarettes and planned to quit within six months recruited from 101 worksite clusters (84 different companies).InterventionsWorksites were digitally cluster randomized by an independent investigator to usual care or usual care plus one of eight types of incentive programmes. Usual care consisted of one time group counseling and cessation support through a 28 day text messaging programme. The incentive programmes depended on abstinence at three months and varied on three intervention components: refundable deposits, assignment to a teammate, and bonus size ($20 (£15; €17) or $40).Main outcome measuresThe primary outcome was biochemically verified seven day point prevalence smoking abstinence at 12 months. Secondary outcomes were programme acceptance at enrollment and smoking abstinence at three months (end of intervention) and at six months. All randomized participants who had complete baseline information were included in intention-to-treat analyses; participants with missing outcomes were coded as continuing smokers.ResultsBetween April 2015 and August 2016, the trial enrolled 4190 participants. Eighteen were omitted because of missing baseline covariates and death before the primary endpoint, therefore 4172 participants were included in the intention-to-treat analyses. Programme acceptance was relatively high across all groups: 58.7% (2451/4172) overall and 61.3% (271/442) in the usual care group. Abstinence rates at 12 months did not differ among deposit programmes (336/2253, 14.9%) and non-deposit programmes (280/1919, 14.6%; adjusted difference 0.8 points, 95% confidence interval -2.7 to 4.3, P=0.65), but were somewhat lower for team based programmes (176/1348, 13.1%) than individual based programmes (440/2824, 15.6%; -3.2 points, -6.6 to -0.2, P=0.07), and higher for $40 bonus programmes (322/1954, 16.5%) than programmes with no bonus (148/1198, 12.4%; 5.9 points, 2.1 to 9.7, P=0.002). The $40 individual bonus was the most efficacious randomization group at all endpoints. Intervention components did not strongly interact with each other.ConclusionsAcceptance of monetary incentive programmes for promoting smoking abstinence was high across all groups. The $40 individual bonus programmes increased long term smoking abstinence compared with usual care, although several other incentive designs did not, such as team based programmes and deposit programmes. Incentive design in workplace wellness programmes might influence their effectiveness at reducing smoking rates in low resource settings.Trial registrationClinicalTrials.gov (NCT02421224).

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Dataset Information

Offering on-site mammography in workplaces improved screening rates: Cluster randomized controlled trial.

Objectives

Methods

Results

Conclusion

Publications

Offering on-site mammography in workplaces improved screening rates: Cluster randomized controlled trial.

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