Several major corporations across different industries reported their first-quarter earnings results, showing mixed performance trends across telecommunications, tobacco, and medical device sectors.

AT&T posted earnings from continuing operations of 54 cents per share for the first quarter, representing a decline from 61 cents per share in the same period last year. The telecommunications company did report revenue growth driven by what it described as advanced connectivity services.

Philip Morris International logged higher revenue in the first quarter, with the tobacco company's international business growth offsetting weaker performance in U.S. sales. The company's international operations proved to be the primary driver of overall revenue increases during the period.

Boston Scientific reported significantly stronger results, with the medical device manufacturer saying its first-quarter net income roughly doubled compared to the previous year. The company attributed the sharp growth to continued worldwide demand for its cardiovascular products, including stents, catheters, and other cardiology devices.

The varied results across these three companies reflect different market conditions and demand patterns affecting their respective industries during the first quarter of the year.