The loss of biodiversity is threatening ecosystem productivity and services worldwide, spurring efforts to quantify its effects on the functioning of natural ecosystems. Previous research has focused on the positive role of biodiversity on resource acquisition (i.e., niche complementarity), but a lack of study on resource utilization efficiency, a link between resource and productivity, has ren...

Background: Economic burden due to premature mortalities is significant both on health system and on the society as a whole. This study aimed to determine the productivity costs and years of potential life lost associated with five leading causes of death in Iran from 2006 to 2010.   Methods: Data on mortality by sex and age-groups due to five main leading causes of death   (m...

This theoretical study reports on the impact of perceived indoor air quality for productivity loss in air-conditioned office buildings. A new derivation of productivity calculation model based on pollution loads and contaminant removal effectiveness is applied and the effect of the improved ventilation efficiency on productivity is estimated. The findings show that the proportion dissatisfied i...

PURPOSE Depression is associated with lowered work functioning, including absences, impaired productivity, and decreased job retention. Few studies have examined depression symptoms across a continuum of severity in relationship to the magnitude of work impairment in a large and heterogeneous patient population, however. We assessed the relationship between depression symptom severity and produ...

INTRODUCTION Lost productivity accounts for a significant part of the costs caused by gastrointestinal symptoms. We aimed to describe selfreported productivity in patients presenting with dyspepsia. MATERIAL AND METHODS Data were sourced from a randomized, double-blinded study of two weeks of esomeprazole 40 mg or placebo in 805 primary-care patients with uninvestigated dyspepsia. Work produc...

Background: The prevalence of autism spectrum disorder (ASD) as a child neurodevelopmental disorder has increased significantly during the past 3 decades worldwide and in Iran. This chronic disease does not cause premature death and there is no definitive treatment. Thus, the cost of ASD is extremely heavy and overwhelming. The purpose of this study is to calculate the economic burden of ASD in...

BACKGROUND The global impact of maternal ill health on economic productivity is estimated to be over 15 billion USD per year. Global data on productivity cost associated with maternal ill health are limited to estimations based on secondary data. Purpose of our study was to determine the productivity cost due to maternal ill health during pregnancy in Sri Lanka. METHODS AND FINDINGS We studie...

OBJECTIVE To examine the relationship between health conditions and the risk for membership in longitudinal trajectories of productivity loss. METHODS Trajectories of productivity loss from the ages of 25 to 44 years, previously identified in the National Longitudinal Survey of Youth (NLSY79), were combined with information on health conditions from the age 40 years health module in the NLSY7...