21.   Shepin attributed the further drop to higher mortality rates from disease, the report said.

22.   The accident also resulted in higher infant mortality, he said.

23.   The scientists said at a news conference that warmer ocean waters in the Pacific has caused a much higher mortality rate among salmon.

24.   The trials showed a higher mortality rate among patients who took the drug, compared with patients who received a sugar pill, or placebo.

25.   But early results showed a higher mortality rate in those who took the supplements compared to those who took placebos.

26.   The pattern is exaggerated still further by higher mortality rates for girls than boys in childhood.