(Telecompaper) Millicom has lowered its outlook for annual sales growth due to difficult economic conditions in some of its markets. After organic service revenue growth of only 2.1 percent in Q2, the company now expects only a low to mid single-digit increase over the full year, compared to a previous outlook for mid single-digits. Adjusted EBITDA is still expected to increase in the mid to high single-digits in 2016, despite a 1.6 percent fall in Q2 to USD 560 million in Q2. Total revenues for the quarter were down 5.7 percent to USD 1.572 billion, after currency effects and a 0.7 percent organic decline in Latin America offset 9.2 percent growth in Africa. Ongoing cost-reduction efforts helped the EBITDA margin still improve to 34.5 percent from 33.6 percent a year ago.