Clinical factors affecting salivary transferrin level, a marker of blood contamination in salivary analysis

BMC Oral Health

Table 2 Correlations among total gingival index, salivary flow rate, and concentrations and secretion rates of transferrin in UWS and SWS in younger and older females

	Flow rate	Concentration of transferrin	Secretion rate of transferrin	Flow rate	Concentration of transferrin	Secretion rate of transferrin
In UWS of younger females				In SWS of younger females
Total gingival index	−0.246	0.109	−0.122	− 0.341	0.462	0.325
Flow rate		−0.455	0.119		−0.506^*	−0.110
Concentration of transferrin			0.666^**			0.879^**
In UWS of older females				In SWS of older females
Total gingival index	0.004	0.109	0.283	0.209	0.059	0.041
Flow rate		−0.352	0.062		−0.644^*	−0.360
Concentration of transferrin			0.847^**			0.809^**

UWS, unstimulated whole saliva; SWS, stimulated whole saliva
Total gingival index reflects the degree of overall gingival inflammation in the oral cavity
Secretion rates of transferrin were calculated by multiplying the flow rates of saliva and their corresponding concentrations of transferrin
The results in the table are from our previous studies [10, 14]
^*P < 0.0083, ^**P < 0.0017 by the Pearson’s correlation analysis with Bonferroni’s correction

ISSN: 1472-6831