Other factors may also contribute to the observed
changes in stone disease prevalence. Mean average
temperature is believed to be a major contributor to
variation in geographic risk for stone disease [15,16]. Data
from military deployments suggest that the onset of
temperature-related changes in stone risk may occur within
90 d [17–20]. For these reasons, Brikowski and colleagues
[21] speculate that temperature-related changes have
contributed to, and may continue to exacerbate, the rising
burden of stone disease.