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Background: The present study was designed to develop a briefer screening scale of approximately 10 items which maintained the validity of the Zung Self-Rating Depression Scale in a sample similar to that attending National Depression Screening Day (NDSD), as well as a more general audience. Methods: We first administered 70 items from a variety of existing rating scales to 40 subjects who answered an ad for depressed subjects and 55 who answered an ad for non-depressed subjects, all of whose diagnoses were confirmed by the Structured Clinical Interview for DSM-IV (SCID). Based on the correlation between each item and the diagnostic criterion, we reduced the number of items to 17 which we then administered to another 45 subjects who answered an ad similar to that used for NDSD and also underwent a SCID interview. Based on these results, we arrived at the final 10-item Harvard Department of Psychiatry/NDSD scale (HANDS) with the assistance of the item-response theory. The items are scored for frequency of occurrence of each symptom over the past 2 weeks. Total scores range from 0 to 30. Results: The 10-item scale (HANDS) has good internal consistency and validity: a cutpoint score of 9 or greater gave sensitivity of at least 95% in both studies. Although specificity was lower for all scales in the self-selected population, the HANDS performed at least as well as the 20-item Zung Scale, the 21-item Beck Depression Inventory-II and the 15-item Hopkins Symptom Depression Checklist. Conclusion: The 10-item HANDS performs as well as other widely used longer self-report scales and has the advantage of briefer administration time.

We examined all articles describing video applications of telemedicine for psychiatry (i.e., "telepsychiatry") that have been published in peer-reviewed journals. We found three reports of video application to continuing education, eight uncontrolled studies or anecdotal clinical reports of video application to assessment or consultation, five clinical investigations including a control group or control condition, three studies evaluating the reliability of administering psychological rating scales by video, and two studies of the cost-effectiveness of telepsychiatry. Although the conclusions of all studies reviewed recommended the use of telepsychiatry, evidence currently available is insufficient to suggest its widespread implementation. Additional studies are needed to determine when and for what age groups and conditions telepsychiatry is an effective way to deliver psychiatric services, and whether it is cost-effective. We recommend that telepsychiatry be employed on a limited basis and be restricted to research settings and underserved communities (where it may be the only option) until further evidence is available.

Research findings suggest that the value added by the video channel of currently available video conferencing technology is limited to the creation of a social presence of the other party. Almost all clinical information exchange takes place on the audio channel, while the interpersonal interactions (nods, blinks, facial expressions, and body language), which are so important in a face-to-face meeting, may not be adequately captured by the video. Several of our case studies are presented which suggest that, consistent with the social presence role for video, low-cost videophones may be effectively substituted for expensive ISDN-based systems in many mental health applications.

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