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. 2017 Apr 4;39(1):452–457. doi: 10.1080/0886022X.2017.1308256

Table 2.

Serum and salivary creatinine and urea levels in the CKD and control groups.

  Group n Mean SD t p
Serum urea (mg/dL) CKD 35 40.6286 25.01421 4.652 .000*
  Control 28 9.2857 2.23361    
Serum creatinine (mg/dL) CKD 35 4.1409 4.28249 2.989 .004*
  Control 28 0.6971 0.15504    
Salivary urea (mg/dL) CKD 35 28.8286 15.75452 1.516 .136
  Control 28 21.7857 11.44336    
Salivary creatinine (mg/dL) CKD 35 0.4489 0.57186 2.208 .042*
  Control 28 0.1114 0.13114    
*

Statistically significant.