Kelly DeRango

Systematic Review of Intervention Practices for Depression in the Workplace

Design Systematic Review. Objective To determine which intervention approaches to manage depression in the workplace have been successful and yielded value for employers in developed economies. Data Sources We searched MEDLINE, EMBASE, CINAHL, Central, PsycINFO, and Business Source Premier up to June 2010 using search terms in four broad areas: work setting, depression, intervention, and work outcomes. Study Selection Two independent reviewers selected potential articles that met the following criteria: working age individuals with mild or moderate depression; interventions or programs that were workplace-based or could be implemented and/or facilitated by the employer; inclusion of a comparator group in the analysis; outcomes of prevention, management, and recurrences of work disability or sickness absence, and work functioning. Methods Two reviewers independently reviewed each article for quality and extracted data using standardised forms. Following guidelines from the GRADE Working Group, the quality of evidence addressing each outcome was graded as high, moderate, low, or very low on the basis of six criteria: study design, risk of bias, consistency, generalisability, data precision, and economic benefit. Using this information and following Cochrane Collaboration guidelines, the findings for each intervention were summarised and key messages were developed. Results We identified ten randomised trials and two non-randomised studies from various countries and jurisdictions that evaluated a wide range of intervention practices. The evidence was graded as “very low” for all outcomes identified. Therefore, no intervention could be recommended. Conclusions To date, there is insufficient quality of evidence to determine which interventions are effective and yield value to manage depression in the workplace.

A replicated field intervention study evaluating the impact of a highly adjustable chair and office ergonomics training on visual symptoms

OBJECTIVE Examine the effects of two office ergonomics interventions in reducing visual symptoms at a private sector worksite. METHODS A quasi-experimental study design evaluated the effects of a highly adjustable chair with office ergonomics training intervention (CWT group) and the training only (TO group) compared with no intervention (CO group). Data collection occurred 2 and 1 month(s) pre-intervention and 2, 6 and 12 months post-intervention. During each data collection period, a work environment and health questionnaire (covariates) and daily health diary (outcomes) were completed. Multilevel statistical models tested hypotheses. RESULTS Both the training only intervention (p<0.001) and the chair with training intervention (p=0.01) reduced visual symptoms after 12 months. CONCLUSION The office ergonomics training alone and coupled with a highly adjustable chair reduced visual symptoms. In replicating results from a public sector worksite at a private sector worksite the external validity of the interventions is strengthened, thus broadening its generalizability.

The Effect of Two Office Ergonomics Field Interventions and their Replication on Visual Symptoms

Upper extremity musculoskeletal symptoms and disorders in the workplace continue to be a significant public health burden (National Research Council and Institute of Medicine, 2001). These outcomes, as they relate to computer use, are important as greater than 50% of employed adults in the United States use a computer at work (U.S. Census Bureau, 2003). Visual symptoms are also known to often coexist with upper extremity musculoskeletal symptoms with computer workers. This study examines the effect of two office ergonomic interventions, a highly adjustable chair and an office ergonomics training, on the reduction of specific visual symptoms. Additionally, findings from a replicated study site are compared with those of the original study. Multilevel logistic regression models were used to estimate the effect. In comparing the original and replication worksites we find specific visual symptom reductions occurred for the group receiving both the chair with training at the original and replicated worksite. However, the group receiving only the office ergonomics training experienced individual visual symptom reductions at the replication worksite but not the original worksite. There were differences in the specific visual symptoms affected by the office ergonomics interventions when comparing worksites.

Office Ergonomics Intervention Study Panel

Ergonomic issues in the office environment affect both workplace health and productivity outcomes. Currently the office ergonomics intervention literature is underrepresented in research studies with rigorous study designs and analytical methods. Furthermore, there exist no published replication intervention studies. Panel members are part of a multidisciplinary inter-institutional research group that conducted the same office ergonomics intervention study at two different worksites (one public and one private sector). Office workers agreeing to participate were assigned to one of two interventions - a highly adjustable chair coupled with an office ergonomics training (chair-with-training group) or the office ergonomics training alone (training-only group) - or a control group receiving the training at the end. During this discussion panel the effects of the interventions on ergonomics knowledge and computing behaviors, biomechanical changes, individual components of musculoskeletal and visual symptoms and productivity will be presented.