Table 4.

Survival in relation to postoperative development in the gait scale and in the mRS

	Adjusted HRa	95% CI	p
Controls	Reference
Improved gait scale (n = 307)	1.43	1.14–1.80	0.002
Unchanged gait scale (n = 286)	2.09	1.71–2.54	< 0.001
Deteriorated gait scale (n = 98)	2.69	2.00–3.60	< 0.001
Controls	Reference
Improved mRS (n = 244)	1.30	1.00–1.69	0.047
Unchanged mRS (n = 295)	1.82	1.49–2.23	< 0.001
Deteriorated mRS (n = 85)	2.62	1.90–3.62	< 0.001
Controls	Reference
Both gait scale and mRS improved (n = 144)	1.16	0.83–1.64	0.391
One of gait scale or mRS improved (n = 198)	1.51	1.13–2.01	0.005
Gait scale not improved, mRS not improved (n = 233)	2.30	1.87–2.83	< 0.001

mRS modified Rankin Scale

^aHR adjusted for age and sex