Table 2.

Univariate analysis of urinary substances associated with complete inhibition for PCR, LCR, or TMA

Inhibitory substanceaPCRLCRTMA
No. of specimens with complete inhibitory activity/total no. testedPb No. of specimens with complete inhibitory activity/total no. testedPb No. of specimens with complete inhibitory activity/total no. testedPb
PresentAbsentPresentAbsentPresentAbsent
Glucose0/1920/3690.2972/1018/378<0.05*2/2918/3590.660
Hemoglobin1/1998/369<0.05*5/1094/3780.07210/2983/359<0.001***
Protein4/1981/3690.9264/1081/3780.16111/2974/359<0.05*
Ketone2/1930/3690.7113/1029/3780.1136/2926/359<0.05*
Nitrites2/1923/3090.4575/1020/378<0.001***6/2919/359<0.01**
beta-HCG12/1989/369<0.001***1/10100/3780.2427/2994/3590.809
Crystals12/19116/369<0.01**4/10124/3780.63317/29111/359<0.01**
Bacteria15/19206/369<0.05*6/10215/3780.84424/29197/359<0.01**
  • a Six other substances not statistically related were leukocytes, urates, oxalates, phosphates, casts, and yeasts.

  • b Statistically significant differences are indicated as follows: *, P < 0.05; **,P < 0.01; ***, P < 0.001.