Table 3.
% Weight Change | P for Trend | HR per 5% change† | P Value | ||||
---|---|---|---|---|---|---|---|
Loss > 5% | Loss 0-<= 5% | Gain 0-< 5% | Gain 5%+ | ||||
Deaths/ Total (%) | |||||||
TOHP I | 22/249 (8.8) | 44/458 (9.6) | 73/632 (11.6) | 16/138 (11.6) | 0.18 | ||
TOHP II | 19/307 (6.2) | 49/643 (7.6) | 55/935 (5.9) | 35/466 (7.5) | 0.92 | ||
Model 1 | |||||||
HR | 0.86 | 0.95 | 1.00 | 1.34 | 0.052 | 1.14 | 0.018 |
95%CI | 0.60-1.23 | 0.72-1.24 | (Reference) | 0.96-1.86 | 1.02-1.27 | ||
Model 2 | |||||||
HR | 0.82 | 0.94 | 1.00 | 1.29 | 0.046 | 1.14 | 0.019 |
95%CI | 0.57-1.18 | 0.72-1.23 | (Reference) | 0.92-1.80 | 1.02-1.28 |
From Cox proportional hazards regression models stratified by trial phase and adjusted as follows: Model 1 (age, sex, race/ethnicity, clinic, baseline weight, and treatment assignments), Model 2 (Model 1 variables plus education status, alcohol use, smoking, exercise, sodium and potassium excretion, family history of cardiovascular disease, and interactions of sodium intervention with sodium and potassium). HR, hazard ratio; CI, confidence interval.
Weight change is winsorized at 3 standard deviation.