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Table 3 Evidence profile: SR1.1. Comparison of ACEI and ARB with other drugs

From: Peritoneal Dialysis Guidelines 2019 Part 2: Main Text (Position paper of the Japanese Society for Dialysis Therapy)

Certainty assessment

Number of patients

Effect

Certainty

Importance

No. of studies

Study design

Bias risk

Inconsistency

Indirectness

Inaccuracy

Other

ARB, ACEI

Other drugs

Relative [95% CI]

Absolute (95% CI)

  

Overall survival rate (number of deaths due to events)

 6

RCT

Serious a

Not serious

Not serious

Serious b

None

3/135 (2.2%)

2/104 (1.9%)

Cannot estimate

No change per 1000 patients (40 patients decreased to 50 patients increased)

Low

Critical

Technical survival (PD continuation period, PD withdrawal) (PD withdrawal)

 6

RCT

Serious c

Not serious

Not serious

Serious d

None

3/134 (2.2%)

3/104 (2.9%)

Cannot estimate

No change per 1000 patients (50 patients decreased to 40 patients increased)

Low

Critical

Technical survival (PD continuation period/PD withdrawal) (peritonitis)

 2

RCT

Not serious

Not serious

Serious e

Serious f

None

12/48 (25.0%)

12/46 (26.1%)

RR 0.98 [0.49–1.95]

5 patients decreased per 1000 patients (248 patients decreased to 133 patients increased)

Low

Important

Urine volume/residual renal function (urine volume)

 6

RCT

Serious c

Not serious

Not serious

Serious g

None

105

89

-

MD 142.56 mL increase (25.42 mL increase to 259.69 mL increase)

Low

Critical

Urine volume/residual renal function (anuria)

 3

RCT

Serious c

Not serious

Not serious

Serious h

None

23/67 (34.3%)

29/59 (49.2%)

RR 0.70 [0.48–1.02]

147 patients decreased per 1000 patients (256 patients decreased to 10 patients increased)

Low

Critical

Urine volume/residual renal function (GFR)

 4

RCT

Serious i

Not serious

Not serious

Serious j

None

87

76

-

MD 0.97 increase (0.49 decrease to 1.44 increase)

Low

Critical

Dialysis volume (total Kt/V)

 3

RCT

Serious c

Not serious

Serious k

Serious l

None

61

49

-

MD 0.21 increase (0.04 decrease to- 0.46 increase)

Very low

Important

Complications (including drug adverse effects/safety issues/hospital stay period) (hyperkalemia)

 1

RCT

Serious c

Not serious

Not serious

Serious m, n

None

0/30 (0.0%)

0/15 (0.0%)

Cannot estimate

No change per 1000 patients (100 patients decreased to 100 patients increased)

Low

Important

Complications (including drug adverse effects/safety issues/hospital stay period) (hospitalization)

 1

RCT

Not serious

Not serious

Serious o

Serious p

None

14/30 (46.7%)

13/30 (43.3%)

Cannot estimate

30 patients decreased per 1000 patients (280 patients decreased to 220 patients increased)

Low

Important

Other outcomes deemed important by the CQ team (cardiovascular events)

 2

RCT

Not serious

Not serious

Not serious

Serious q

None

5/48 (10.4%)

5/46 (10.9%)

Cannot estimate

No change per 1000 patients (90 patients decreased to 90 patients increased)

Moderate

Critical

  1. CI, confidence interval; RR, risk ratio; MD, mean difference; RCT, randomized clinical trial
  2. aMany unclear elements. About half of the included studies are at high risk of having incomplete outcome data
  3. bIf considering 1% of risk difference as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  4. cThere is an unignorable bias in the studies with high weight
  5. dIf considering 2% of risk difference in PD technical failure as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  6. eDue to the definition of peritonitis as a cause of technical survival
  7. fIf considering 2% of risk difference in the PD peritonitis rate as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  8. gIf considering 100 ml of urine volume difference as the clinical decision threshold, the 95% CI of mean difference crosses the threshold
  9. hIf considering 5% of risk difference in the anuria rate as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  10. iThere are unignorable biases in allocation concealment and incomplete data in two studies
  11. jIf considering 1.0 ml/min of GFR difference as the clinical decision threshold, the 95% CI of mean difference crosses the threshold
  12. kTotal Kt/V is the sum of residual renal and peritoneal urea clearance and therefore does not indicate peritoneal membrane function
  13. lIf considering 0.1 of a total Kt/N difference as the clinical decision threshold, the 95% CI of mean difference crosses the threshold
  14. mThe low number of events
  15. nIf considering 5% of risk difference in hyperkalemia as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  16. oDue to the definition of hospitalization as a complication
  17. pIf considering 2% of risk difference in the hospitalization rate as the clinical decision threshold, the 95% CI of risk difference crosses the threshold
  18. qIf considering 2% of risk difference in cardiovascular events as the clinical decision threshold, the 95% CI of risk difference crosses the threshold