Sixteen percent of all teachers are considered chronically absent, missing 18 days or more per year, a new study said.
A Think Tank in Washington, D.C. looked at 234,000 teachers in 40 of the country's largest school districts. It found teachers miss an average of 11 days.
In Sacramento, more than 51 percent of teachers are chronically absent. In San Francisco, the number is more than 41 percent.
And in San Jose, it is about 45 percent.
The study looked at short-term absences and did not count absences for serious illness, or maternity and paternity leave.