We prospectively studied a total of 107,192 subjects over 18 years of
age (51,122 men and 56,070 women) who participated in dipstick urinaly
ses and blood pressure measurements in 1983. The subjects represented
approximately 13.7% of the entire Okinawan adult population of 780,000
according to the 1980 Census. Independently, data for all dialysis pa
tients registered from April 1, 1983 to March 31, 1994 were analyzed;
the total number of end-stage renal disease (ESRD) dialysis patients w
as 2,009 (1,126 men and 883 women) during the study period. Dialysis p
atients who had been in the 1983 mass screening and who later required
dialysis during the study period were identified and verified by revi
ewing the medical records. ESRD developed in 193 (105 men and 88 women
) participants from the 1983 health screening. In this mass screening
setting, high diastolic blood pressure was identified as the significa
nt predictor of ESRD with an adjusted odds ratio of 1.39 and a 95% con
fidence interval of 1.17 to 1.64.