The study, published in the Journal of Occupational & Environmental Medicine, looked at data tracking the short-term disability leave of 33,913 full-time employees in Ontario. Results showed that the cost to a company for a single employee on a short-term disability leave due to mental health concerns totals nearly $18,000.

Dr. Carolyn Dewa, head of CAMH's Work and Well-being Research and Evaluation Program and lead investigator on the study, notes the disproportionate cost to employers when compared to other disabilities. "In an average year, a firm with 1,000 employees might expect about 145 disability cases. Of this, only a fraction are on disability due to mental illness, yet it costs employers the most." Disability leaves due to physical illness cost nearly half of that for a leave due to mental illness.

Health and wellness interventions may hold the key to maintaining a healthy workforce and reducing costs. "We know that mental health triggers in the workplace can lead to disability -- things like stress, casual and part-time work, and uncertain economic conditions can really take a toll on workers -- especially if there is a pre-existing mental health condition," says Dr. Dewa. "And while it is important to support workers that are on disability leave, it is crucial that businesses make mental health and wellness a priority to prevent disability in the first place."

Dr. Dewa suggests that implementing a continuum of care and support is an effective way of reducing the likelihood that an employee has to take a disability leave. She adds that programs emphasizing a healthy work-life balance, supports to help cope with stress, and access to physical fitness make people better workers and help sustain health.

Note: If no author is given, the source is cited instead.

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