Table:
Variable	Hypertonic saline (n = 60)	Normal saline (n = 60)	P value
Demographic and clinical characteristics
Age (years)	76.6 ± 5.8	75.6 ± 5.6	0.382
Sex, female (%)	31 (52)	27 (45)	0.534
BMI (kg/m2)	28.7 ± 3.4	28.5 ± 3.3	0.845
Education (years)	9.2 ± 3.3	9.6 ± 3.3	0.492
ASA score of 2, n (%)	38 (63.3)	35 (58.3)	0.315
MMSE (point)	25.7 ± 1.4	25.5 ± 1.3	0.343
Duration of anesthesia (min)	98.5 ± 12.3	102.2 ± 13.3	0.113
Frequency of comorbidities:
Coronary artery disease, n (%)	14 (23.3)	18 (30)	0.682
Diabetes, n (%)	15 (25.0)	10 (16.7)	0.261
Hypertension, n (%)	47 (78.3)	50 (83.3)	0.484
Cerebral infarction, n (%)	14 (23.3)	19 (31.7)	0.307
Cytokines
IL-1β (pg/ml)	1.33 ± 0.17	1.75 ± 0.15	0.000
IL-6 (pg/ml)	91.03 ± 9.32	121.44 ± 9.58	0.000
IL-10 (pg/ml)	6.89 ± 1.78	5.45 ± 1.68	0.000
TNF-α (pg/ml)	20.64 ± 3.78	44.03 ± 3.52	0.000
S100β (ng/mL)	0.26 ± 0.09	0.34 ± 0.11	0.000
CD14 + CD16+ monocytes (%)	19.70 ± 4.57	35.75 ± 4.31	0.000
Prevalence of delirium, n (%)	7 (11.7)	23 (38.3)	0.001

Interpret the figure as Markdown format.

| Variable | Hypertonic saline (n = 60) | Normal saline (n = 60) | P value | 
 | --- | --- | --- | --- | 
 | <COLSPAN=4> Demographic and clinical characteristics | 
 | Age (years) | 76.6 ± 5.8 | 75.6 ± 5.6 | 0.382 | 
 | Sex, female (%) | 31 (52) | 27 (45) | 0.534 | 
 | BMI (kg/m2) | 28.7 ± 3.4 | 28.5 ± 3.3 | 0.845 | 
 | Education (years) | 9.2 ± 3.3 | 9.6 ± 3.3 | 0.492 | 
 | ASA score of 2, n (%) | 38 (63.3) | 35 (58.3) | 0.315 | 
 | MMSE (point) | 25.7 ± 1.4 | 25.5 ± 1.3 | 0.343 | 
 | Duration of anesthesia (min) | 98.5 ± 12.3 | 102.2 ± 13.3 | 0.113 | 
 | <COLSPAN=4> Frequency of comorbidities: | 
 | Coronary artery disease, n (%) | 14 (23.3) | 18 (30) | 0.682 | 
 | Diabetes, n (%) | 15 (25.0) | 10 (16.7) | 0.261 | 
 | Hypertension, n (%) | 47 (78.3) | 50 (83.3) | 0.484 | 
 | Cerebral infarction, n (%) | 14 (23.3) | 19 (31.7) | 0.307 | 
 | <COLSPAN=4> Cytokines | 
 | IL-1β (pg/ml) | 1.33 ± 0.17 | 1.75 ± 0.15 | 0.000 | 
 | IL-6 (pg/ml) | 91.03 ± 9.32 | 121.44 ± 9.58 | 0.000 | 
 | IL-10 (pg/ml) | 6.89 ± 1.78 | 5.45 ± 1.68 | 0.000 | 
 | TNF-α (pg/ml) | 20.64 ± 3.78 | 44.03 ± 3.52 | 0.000 | 
 | S100β (ng/mL) | 0.26 ± 0.09 | 0.34 ± 0.11 | 0.000 | 
 | CD14 + CD16+ monocytes (%) | 19.70 ± 4.57 | 35.75 ± 4.31 | 0.000 | 
 | Prevalence of delirium, n (%) | 7 (11.7) | 23 (38.3) | 0.001 |