Euro zone industrial output was unchanged in January from December, but rose 2.5 pct year-on-year, EU statistics agency Eurostat said.
The figures fell short of the consensus forecasts of economists polled by AFX News, who were expecting a month-on-month rise of 0.5 pct and a year-on-year increase of 2.8 pct.
Eurostat revised the December data to a month-on-month rise of 0.2 pct from its earlier estimate of a 0.1 pct increase.
In January, capital goods output rose 1.1 pct month-on-month, durable consumer goods output and intermediate goods output were up 0.4 pct, non-durable consumer goods output fell 0.6 pct, and energy sector output was down 3.0 pct.
Year-on-year, capital goods output rose 4.2 pct, energy sector output was up 3.4 pct, durable consumer goods output posted a 2.9 pct increase, intermediate goods output was 2.3 pct higher, and non-durable consumer goods output edged up 0.5 pct.