Salivary immunoglobulin classes in Nigerian smokers with periodontitis

Table 2 Levels of salivary immunoglobulin classes in non-smokers with periodontitis, smokers with periodontitis, and smokers without periodontitis

	NS+P(n = 25)	S+P(n = 20)	S-P(n = 24)	P1value	P2value
IgG (ng/L)	370.0 ± 60.9	349.4 ± 91.5	355.7 ± 40.8	0.268	0.42
IgA (ng/L)	670.0 ± 110	520.0 ± 155.1	570.4 ± 145.6	0.000	0.008
IgM (ng/L)	791.4 ± 43.7	644.5 ± 160.0	703.1 ± 169.3	0.000	0.012
IgE (IU/mL)	0.2 ± 1.0	0.2 ± 0.9	0.04 ± 0.2	1.000	0.494

¹NS+P vs S+P; ²NS+P vs S-P. S+P: Smokers with periodontitis; S-P: Smokers without periodontitis; NS+P: Non-smokers with periodontitis.