Sodium Excretion and Blood Pressure of West and East Finns

Altogether 1178 men aged 55–74 were studied at 15‐year re‐examination of two rural cohorts of initially 1711 men from east and west Finland. At the start, 15 years ago, the mean BPs were 148/89 and 140/82 mmHg in the eastern and western populations, respectively. The difference had now disappeared and changed direction for systolic BP (east 147/85, west 155/84 mmHg). Of those with an initial systolic BP of 170 mmHg or higher, 68/118 (58%) in the...