The Influence of Cigarette Smoking on Gingival Bleeding and Serum Concentrations of Haptoglobin and Alpha 1-Antitrypsin

Table 2

Association between BOP and other variables.

	Mean ± SD	Patient number	Pearson correlation	𝑃 value	S/NS
Number of cigarettes per day	13.39±5.75	99	0.323	0.001	S
Duration of smoking in years	16.03±8.78	99	0.432	0.001	S
Cotinine (ng/dL)	106.9±30.71	99	0.039	0.708	NS
Haptoglobin (mg/dL)	76.04±52.48	99	0.144	0.155	NS
Alpha 1-antitrypsin (mg/dL)	141.90±18.40	99	0.198	0.049	NS