Indoor environment, productivity in offices

In this article, models for estimating how the indoor environment quantitatively affects sick leave and work performance are presented. Working environment, facility services, personal motivation, psychological aspects are factors, other than IEQ, that affect work performance too.
The authors ackowledge the high level of uncertainty associated with the incorporation of health and productivity effects in cost-benefit calculations related to building design and operation. But at the same time they believe that taking them into account will lead to better decisions about building design.