Older adults who lose more than 5% of their waist size are more likely to die within the study period compared to those whose waist size stays stable.

An increase in waist circumference is quantitatively associated with increased all-cause mortality risk in adult humans.

For older adults, both very small and very large changes in waist size are linked to higher death rates, forming a U-shaped pattern.

People with bigger waists are more likely to die sooner, even if their overall weight seems normal—this means where you carry fat matters more than how much you weigh.

Gaining weight or increasing waist size didn't significantly affect the risk of death compared to stable weight or waist size in older adults.

Increased waist circumference is associated with a higher risk of metabolic disease and mortality, independent of total body weight.