Correlation between Preoperative Anxiety and ABO Blood Types: Evidence from a Clinical Cross-Sectional Study
Table 1
Demographic characteristics of patients.
Variables
Response
A ()
B ()
AB ()
O ()
Age, yr ()
Sex
Male
47 (51%)
41 (48%)
44 (50%)
41 (48%)
Female
46 (49%)
45 (52%)
44 (50%)
44 (52%)
BMI ()
ASA (%)
I
27 (29%)
23 (27%)
26 (30%)
27 (32%)
II
52 (56%)
48 (56%)
46 (52%)
45 (53%)
III
14 (15%)
15 (17%)
16 (18%)
13 (15%)
Operation history (%)
0
61 (66%)
58 (67%)
55 (63%)
58 (68%)
1
26 (28%)
23 (27%)
26 (29%)
21 (25%)
≥2
6 (6%)
5 (6%)
7 (8%)
6 (7%)
Smoking (%)
Yes
18 (19%)
17 (20%)
19 (22%)
15 (18%)
No
75 (81%)
69 (80%)
69 (78%)
70 (82%)
VAS (%)
1~3
47 (51%)
46 (53%)
49 (56%)
47 (55%)
≥4
46 (49%)
40 (47%)
39 (44%)
38 (45%)
Operation type (%)
Liver
20 (21%)
21 (24%)
18 (20%)
17 (20%)
Gallbladder
13 (14%)
11 (14%)
14 (16%)
9 (11%)
Intestines
60 (65%)
54 (63%)
56 (64%)
59 (69%)
Hypertension (%)
Yes
11 (12%)
15 (17%)
16 (18%)
14 (16%)
No
82 (88%)
71 (83%)
72 (82%)
71 (84%)
Diabetes (%)
Yes
6 (6%)
3 (3%)
5 (6%)
6 (7%)
No
87 (94%)
83 (97%)
83 (94%)
79 (93%)
Note: one-way ANOVA and chi-square test were used to identify the difference among the A, B, AB, and O blood type groups in some variables. BMI = body mass index; ASA = American Society of Anesthesiologists; VAS = visual analogue scale for pain; SD = standard deviation; yr = year.
