DEERFIELD, Ill.--(BUSINESS WIRE)--Baxter International Inc. (NYSE:BAX) today reported results for the first quarter of 2016, and also increased its earnings per share outlook for full-year 2016. First quarter worldwide sales totaled $2.4 billion, an increase of 4 percent on a constant currency basis as compared to the prior year period. On a reported basis, sales declined 1 point as foreign exchange negatively impacted sales by five percentage points in the quarter.