| Methods |
Non‐randomised controlled trial, unit of allocation = bar |
| Participants |
Utah, USA.
Experimental = 26 premises
Control = 14 premises |
| Interventions |
Server training One‐day training session. Servers and managers attended separate programmes that taught the physical and behavioural effects of alcohol and strategies for providing a more responsible alcohol service; taught the physical and behavioural effects of alcohol, and strategies for providing more responsible alcohol service. Managers received instruction on developing company policies to change the drinking environment. |
| Outcomes |
Observed server behaviour.
Knowledge (in trained group only) measured using questionnaires. |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Adequate sequence generation? |
High risk |
Ninety‐seven servers from 26 different establishments attended training were used as the intervention group. Control premises (n=14) were 'randomly selected'. |
| Allocation concealment? |
Unclear risk |
No information reported. |
| Blinding?
All outcomes |
Low risk |
The observers were blind to allocation status and the servers were unaware that they were being observed. |
| Confounders |
Unclear risk |
Control premises were matched on premise type and size. Any differences at baseline between the groups were not reported. |
| Data collection methods |
Unclear risk |
Knowledge was assessed in trained servers only using a questionnaire before and after training.
Server behaviour was measured by pairs of trained observers. Observations were made in 13 of 21 establishments with trained managers and 11 of 14 control premises. |
| Withdrawals & dropouts |
Unclear risk |
None reported. |
| Intervention integrity |
Unclear risk |
Not reported. |
| Duration of follow‐up |
Unclear risk |
Length of before and after periods of administration of knowledge questionnaire was not stated.
Observations took place 4‐6 weeks after intervention. |
