Table 2.

Quality indicators for nonrandomized controlled trials.

Authors	Recruitment	Randomization	Blindinga	Data collection	Attrition	Missing data handling	Adherence	Limitations
Shandley et al [43]	Not reported	N/Ab	N/A	Pre/post/2 months	Post: 42.1% Follow-up: 62.4%	ITTc	Yes	Attrition; Limited adherence
Finkelstein and Lapshin [35]	University medical school	N/A	N/A	Pre-post (immediate)	Not applicable/data collected immediate pre/post	N/A	N/A	Follow-up; University sample
Li et al [39]	University	N/A	N/A	Pre/post	Post: 42.1%	ITT	Not reported in detail	Attrition; Small, university sample
Roy et al [42]	Military services	N/A	N/A	Pre/post/optional at 10 days	Post: 0% (only 1 event of using website) Optional follow-up: (74.4%)	N/A	Not reported	Lack of reporting on methods; Short, optional follow-up

^a Blinding of participants and/or personnel.

^b N/A: not applicable.

^c ITT: intention-to-treat.