Table 4.

Multiple regression analysis (forward step-wise), split by gender, of predictive factor for osseous fusion at follow-up after anterior cervical decompression and fusion

Variable	Cumulative adjusted R2 by step	Beta	b	Standard error b
Men
N:o operating level	0.02	0.19	0.10	0.1
Women
Treatment	0.22	0.54	0.55	0.26