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Table 2 Unadjusted factors contributing to high peritonitis rate among children on peritoneal dialysis

From: Factors influencing occurrence of peritonitis in Saudi children on peritoneal dialysis

      95% CI for RR
FactorsReferenceBSEPRRLowerUpper
FemaleMale1.9770.5950.001*7.2182.24723.184
Age: 6–10 yrs<  6 yrs−0.6671.0920.5420.5130.0604.364
Age: >  10 yrs<  6 yrs− 0.0711.2190.9530.9310.08510.151
Residency: Outside RiyadhRiyadh1.1180.8990.2143.0600.52517.823
Low socioeconomicAverage or high2.3081.1140.038*10.0511.13489.128
Diagnosis
 Congenital nephrosisOthers1.8960.8300.022*6.6581.30833.886
 Hypoplastic kidneyOthers1.4620.8930.1024.3130.75024.808
 Reflux nephropathy with neurogenic bladderOthers−0.1820.4340.6750.8340.3571.950
Glucose concentration
 2.50%1.50%1.4171.0740.1874.1230.50333.807
 Mixed (1.5–2.5%)1.50%0.5500.4190.1891.7330.7633.939
 Catheter removalNo0.7490.6820.2722.1150.5558.055
 Height: below 3rd percentileAppropriate1.6800.6580.011*5.3661.47819.476
 Weight: below 3rd percentile3rd-95th percentile1.8580.6610.005*6.4081.75423.413
 Urine output: AnuriaPassing1.8500.6380.004*6.3601.82222.199
 Abnormal WBCNormal (4–12 g/l)0.4880.4090.2321.6300.7313.633
 Neutrophils: HighNormal1.7610.6780.009*5.8161.54121.941
 Peritoneal cell count: 100 or lessMore than 1001.5172.2930.5084.5570.051407.810
 Peritoneal analysis: More than 5050 or less1.9700.5560.001*7.1732.41321.323
Peritoneal fluid culture
 Coagulase-negative staphNo growth1.1090.4410.012*3.0301.2777.189
 Viridans streptococciNo growth0.9130.8490.2822.4910.47213.147
 OthersNo growth2.2170.7870.005*9.1791.96442.899
 Albumin level: LowNormal1.6470.6680.014*5.1891.40219.215
Antibiotic type
 CefazolinMixed(cefazolin+ceftazidime)−0.0840.7260.9080.9190.2223.815
 CeftazidimeMixed(cefazolin+ceftazidime)0.9060.7330.2172.4750.58810.419
 VancomycinMixed(cefazolin+ceftazidime)1.0050.7260.1662.7320.65811.334
 OtherMixed(cefazolin+ceftazidime)3.0311.4640.038*20.7231.177364.880
Duration of antibiotic
 2 weeks10 days1.3020.5530.019*3.6771.24410.868
 3 weeks/3 months10 days1.5001.2240.2204.4820.40749.349
  1. *The Wald Chi-Square test is significant at P ≤ 0.05. RR unadjusted rate ratio. B, the estimated Poisson regression coefficient