TABLE 7.
Risk of bias assessment of crossover nonrandomized intervention trials examining dietary sodium and its effect on subclinical cardiovascular disease measures1
| Reference | Indicator | Association | Selection unrelated to sodium/outcome | Coinciding follow-up/baseline exam | Departures from intended intervention | Adequate follow-up | Indicator assessors blinded to intervention group | Prespecified indicator |
|---|---|---|---|---|---|---|---|---|
| He M et al. (39) | QT-interval | + | L | L | L | L | L | U |
| Wang et al. (64) | PWV | 0 | U | L | L | L | U | U |
| Total high rankings | 0 | 0 | 0 | 0 | 0 | 0 |
1
n = 2. L, low; PWV, pulse wave velocity; U, unclear.