Table 4.

Multiple regression analysis to examine the relationship between salivary viral load, measured using the Poisson quantitative PCR assay, and various systemic and oral parameters in 18 patients with human immunodeficiency virus type 1

Parameter	Regression coefficient(95% confidence interval)	Partial correlation coefficient	F	Statistical significance
Plasma viral load	1.10 (0.76, 1.51)	0.90	44.7	P < 0.01
Community periodontal index	–0.61 (–1.14, –0.08)	–0.63	6.53	P < 0.05
Oral haemoglobin index	16033 (–2524, 34592)	0.51	3.71	NS
CD4	0.0005 (–0.002, 0.003)	0.14	0.20	NS
Salivary secretion rate	0.29 (–0.82, 1.40)	0.18	0.35	NS
Patient age	–0.03 (–0.07, 0.02)	–0.36	1.45	NS
Number of teeth	0.06 (–0.04, 0.17)	0.38	1.6	NS

NS, no statistically significant correlation (P > 0.05).