Table 3.

Clinical findings and periodontal characteristics

Variable	Case subjects	Control subjects	p value
Plaque index	1.8 ± 0.7	1.3 ± 0.4	<0.001
Gingival index	1.9 ± 1.1	0.9 ± 0.5	<0.001
Bleeding on probing	0.4 ± 0.3	0.1 ± 0.2	<0.001
Clinical attachment loss, mm	2.6 ± 0.5	2.4 ± 0.3	0.260

Values represent means 8 SD. Plaque index and gingival index were each scored on a scale of 0–3.