Clinical Assessment of Nifedipine-Induced Gingival Overgrowth in a Group of Brazilian Patients

Table 2

Z test values for the comparison of the proportions for periodontal variables between groups.

Variables	Scores and intervals	Z values
		Test × Control
GO	<2	−2.32*
	≥2	2.32*
PI	0-1	−1.22
	2-3	1.24
GI	0-1	0.67
	2-3	−0.79
PD	<3 mm	−1.21
	from 3 to 4 mm	0.57
	≥5 mm	1.19
CIL	<3 mm	−2.68*
	from 3 to 4 mm	2.05*
	≥5 mm	1.31
PB	0	−1.61
	1	1.62

Significant differences: , Z = ±1.96.