More on Employee Engagement

http://www.gallup.com/topic/employee_engagement.aspx
Many articles here.

For example:

Engaged Employees Less Likely to Have Health Problems

http://www.gallup.com/poll/187865/engaged-employees-less-likely-health-problems.aspx?g_source=EMPLOYEE_ENGAGEMENT&g_medium=topic&g_campaign=tiles

Female Bosses More Engaging than Male Counterparts

http://www.gallup.com/businessjournal/183026/female-bosses-engaging-male-bosses.aspx
"Leaders should also know that female managers themselves tend to be more engaged than male managers."
"Employees who work for a female manager are six percentage points more engaged, on average, than those who work for a male manager -- 33% to 27%, respectively."