Table 2.

Cumulative incidence of vertebral fractures

Months	Minodronate			Placebo			Log-rank test
	n	Number of patients (%)	Cumulative incidence (%)	n	Number of patients (%)	Cumulative incidence (%)
0	339	0 (0.0)	0.0	328	0 (0.0)	0.0	P < 0.0001
6	310	20 (6.5)	6.5	308	27 (8.7)	8.7
12	274	1 (0.4)	6.8	265	11 (4.2)	12.5
18	261	6 (2.3)	8.9	242	14 (5.8)	17.6
24	246	4 (1.6)	10.4	219	17 (7.8)	24.0

Data was analyzed by actuarial method.