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Table 4 Occurrence of adverse events (AE) agreed upon at the clinical trial research meeting and results of statistical analysis

From: Clinical evaluation of a newly developed automated hemodialysis system as a clinical trial

  Test/control machine*1 No. of events Incidence (%) No. patients with AE Statistical test Significant difference
Decrease in blood pressure Test 24 6.897 12 χ2 = 0.165
P = 0.684
NS
Control 26 7.493 14
Residual blood Test 3 0.862 1 χ2 = 3.004
P = 0.125
NS
Control 0 0.000 0
Water removal error Test 6 1.724 6 χ2 = 2.295
P = 0.130
NS
Control 11 3.170 7
  1. *1No. of dialyses are 348 (test machine) and 347 (control machine)