Table 2.

Summary of the sample characteristics

Data	Study group (with NF1)	Control group	P *
Number	49	49
Age (years)	42.5 ± 14.8†	42.5 ± 14.8†	–
Sex (female/male)	35/14 (2.5:1.0)	35/14 (2.5:1.0)	–
Smoker	4 (8%)	9 (18%)	0.227
Alcohol user	8 (16%)	10 (20%)	0.774
Hyposalivation-inducing drugs	14 (28%)	18 (36%)	0.344

NF1, Neurofibromatosis 1.

*P value is from McNemar χ² test; ^† Results indicate mean ± standard deviation.