Table 3.

Rates of symptomatic IDH, asymptomatic IDH, and symptoms alone by intervention

VariableSymptomatic IDH Rate, Events/hAsymptomatic IDH Rate, Events/hSymptoms Alone Rate, Events/h
Run-in period0.15 (0.10 to 0.20)0.31 (0.25 to 0.37)0.07 (0.04 to 0.10)
Biofeedback period0.10 (0.06 to 0.14)0.33 (0.24 to 0.41)0.05 (0.03 to 0.06)
 Start of period0.15 (0.06 to 0.24)0.36 (0.25 to 0.47)
 End of period0.07 (0.03 to 0.10)0.26 (0.16 to 0.36)
Control period0.07 (0.05 to 0.10)0.30 (0.23 to 0.37)0.06 (0.04 to 0.08)
 Start of period0.09 (0.04 to 0.13)0.32 (0.25 to 0.40)
 End of period0.11 (0.02 to 0.19)0.33 (0.20 to 0.47)
  • Values are expressed as mean (95% confidence interval) unless otherwise indicated. IDH, intradialytic hypotension