Respiratory Function and Grip Strength in the Acute Phase of Stroke Are Associated with Stroke Severity and Disability at Hospital Discharge

Table 4

Association between the demographic, clinical, respiratory function, and grip strength variables and stroke severity, as measured by the NIHSS scale.

Variables	NIHSS score at discharge		NIHSS score 90 days after discharge
	Age (years)	-0.063	0.677	-0.117	0.436
Glycaemia	-0.019	0.899	-0.066	0.661
Weight	-0.029	0.843	-0.137	0.363
Height	-0.0004	0.997	-0.151	0.316
BMI	-0.037	0.804	0.027	0.857
AC	-0.167	0.265	-0.117	0.436
RR	-0.056	0.710	-0.058	0.698
CR	0.014	0.928	-0.163	0.279
SPO2	0.076	0.614	0.073	0.629
SBP	-0.037	0.807	-0.315	0.030
DBP	-0.010	0.946	-0.256	0.086
MBP	0.032	0.831	-0.228	0.127
MIP	-0.273	0.066	-0.066	0.662
MEP	-0.271	0.068	-0.162	0.281
Handgrip strength affected side	-0.335	0.023	-0.450	0.002
Handgrip strength nonaffected side	-0.126	0.404	-0.067	0.658
Length of hospital stay	0.194	0.195	0.076	0.614

: Correlation coefficient; NIHSS: National Institutes of Health Stroke Scale; BMI: body mass index; AC: abdominal circumference; RR: respiratory rate; HR: heart rate; SPO2: saturation of peripheral oxygen; SBP: systolic blood pressure; DBP: diastolic blood pressure; MBP: median blood pressure; MIP: maximum inspiratory pressure; MEP: maximum expiratory pressure.