Chicks had a lower mortality (8.3%) and their survival improved after the first week.
This being true is offset by unit cost, lower mortality and higher egg production due to less stress experienced in larger units.
That we found a lower mortality than expected is not relevant to the paper's message.
It could also result from lower post-infection mortality among those more affluent, due to better access to care and nursing.
Greater consumption of candy was not associated with progressively lower mortality.
The surgery can be performed with a low operative mortality.
Dutch research shows that cutting the line immediately when the fish is gut hooked will still give low mortality (14%).
The population of the city has a uniquely high birth rate as well as surprisingly low mortality.
It is a disease with a high morbidity but a low mortality.
The plant is long-lived, has low mortality, and can survive many years without fire.