Number Needed to Treat with Vertebral Augmentation to Save a Life

Article Figures & Data

Table 1:

Survival probability for BKP versus NSM, VP versus NSM, and BKP versus VP

Year	BKP vs NSM				VP vs NSM				BKP vs VP
	Unadjusted		Adjusted		Unadjusted		Adjusted		Unadjusted		Adjusted
	NSM	BKP	NSM	BKP	NSM	VP	NSM	VP	VP	BKP	VP	BKP
1	76.8%	84.2%	79.1%	85.9%	76.8%	81.6%	79.1%	83.5%	81.4%	84.1%	79.7%	82.6%
2	66.4%	74.2%	67.9%	75.4%	66.4%	70.9%	67.9%	72.2%	70.3%	73.6%	68.7%	72.1%
3	57.4%	65.6%	58.3%	66.4%	57.4%	62.0%	58.3%	62.9%	60.7%	64.4%	59.3%	63.1%
4	49.5%	57.8%	49.6%	57.9%	49.5%	53.9%	49.6%	54.0%	52.1%	56.0%	50.7%	54.6%
5	42.5%	50.9%	41.9%	50.3%	42.5%	46.7%	41.9%	46.1%	44.3%	48.5%	43.0%	47.2%

Table 2:

Number needed to treat for BKP versus NSM, VP versus NSM, and BKP versus VP

Year	BKP vs NSM		VP vs NSM		BKP vs VP
Year	Unadjusted (95% CI)	Adjusted (95% CI)	Unadjusted (95% CI)	Adjusted (95% CI)	Unadjusted (95% CI)	Adjusted (95% CI)
1	13.5 (13.1–13.9)	14.8 (14.4–15.2)	20.8 (19.9–21.8)	22.8 (21.8–23.9)	36.7 (34.5–39.2)	33.9 (31.9–36.2)
2	12.9 (12.6–13.1)	13.4 (13.1–13.6)	22.2 (20.9–23.8)	23.0 (21.6–24.6)	30.3 (28.1–32.9)	29.1 (27.0–31.6)
3	12.2 (12.0–12.5)	12.4 (12.1–12.7)	21.6 (20.1–23.3)	21.9 (20.3–23.6)	26.7 (24.6–29.2)	26.1 (24.0–28.5)
4	12.1 (11.8–12.4)	12.1 (11.8–12.4)	22.9 (21.1–25.1)	23.0 (21.1–25.1)	25.8 (23.6–28.5)	25.4 (23.2–28.1)
5	12.0 (11.4–12.6)	11.9 (11.3–12.6)	23.8 (21.8–26.3)	23.8 (21.7–26.3)	24.1 (22.0–26.6)	23.9 (21.8–26.4)