1. Are the results of the study valid? Yes
1a. Were subjects randomly assigned to the experimental and control groups? Yes
1b. Was random assignment concealed from the individuals who were first enrolling subjects into the study? Uncertain
1c. Were the subjects and providers kept blind to study group? No
1d.Were reasons given to explain why subjects did not complete the study? No
1e.Were the follow-up assessments conducted long enough to fully study the effects of the intervention? Yes
1f. Were the subjects analyzed in the group to which they were randomly assigned? Yes
1g.Was the control group appropriate? Yes
1h.Were the instruments used to measure the outcomes valid and reliable? Yes
1i.Were the subjects in each of the groups similar on demographic and baseline clinical variables?