an increasing trendP < 0.001
An increasing trend of risk of all-cause and heart disease mortality from group 1 to group 4 was observed ( P < 0.001 for trend; detailed statistical results are shown in Supplementary Table S1 ).
An increasing trend of risk of all-cause and heart disease mortality from group 1 to group 4 was observed ( P < 0.001 for trend; detailed statistical results are shown in Supplementary Table S1 ).