Somerville-based Central Bancorp Inc. reported $345,000 net income for the quarter ended Dec. 31, 2010, a decrease from the $366,000 reported during the same time in 2009.

However, net income for the nine months ended Dec. 31, 2010 was $1.5 million, an increase from the $1.3 million for the same time in 2009, according to a statement.

The quarterly decrease was the result of a $200,000 increase in the provision for loan losses; a $129,000 decrease in net interest income; a $23,000 increase in the provision for income taxes partially offset by a $173,000 increase in non-interest income; and a $158,000 decrease in non-interest expenses, according to a statement.