|
Sex
|
|
Female
|
316 (42.7)
|
257 (48.2)
|
59 (28.5)
|
< 0.001
|
|
Male
|
424 (57.3)
|
276 (51.8)
|
148 (71.5)
| |
|
Age (years) a
|
43.7 ± 14.9
|
40.0 ± 13.0
|
53.1 ± 15.4
|
< 0.001
|
|
Age group (years)
|
|
15–29
|
141 (19.1)
|
126 (23.6)
|
15 (7.2)
|
< 0.001
|
|
30–44
|
281 (38.0)
|
240 (45.1)
|
41 (19.8)
| |
|
45–59
|
210 (28.3)
|
122 (22.9)
|
88 (42.6)
| |
|
≥ 60
|
108 (14.6)
|
45 (8.4)
|
63 (30.4)
| |
|
Received NAIs (any)
|
|
No
|
734 (99.2)
|
529 (99.2)
|
205 (99.0)
|
0.769
|
|
Yes
|
6 (0.8)
|
4 (0.8)
|
2 (1.0)
| |
|
Received antyperitc drugs (any)
|
|
No
|
326 (44.1)
|
227 (42.6)
|
99 (47.8)
|
0.198
|
|
Yes
|
414 (55.9)
|
306 (57.4)
|
108 (52.2)
| |
|
Antipyretic drug received b
|
|
Acetaminophen
|
372 (89.9)
|
291 (95.1)
|
81 (75.0)
|
< 0.001
|
|
Metamizole
|
11 (2.7)
|
5 (1.6)
|
6 (5.6)
| |
|
Ibuprofen
|
10 (2.3)
|
4 (1.3)
|
6 (5.6)
| |
|
Other
|
21 (5.1)
|
6 (2.0)
|
15 (13.8)
| |
|
Received influenza vaccine c
|
|
No
|
622 (84.1)
|
440 (82.6)
|
182 (87.9)
|
0.073
|
|
Yes
|
118 (15.9)
|
93 (17.4)
|
25 (12.1)
| |
|
Elapsed days from symptoms onset to health-care seeking
|
|
< 1
|
347 (46.9)
|
253 (47.5)
|
94 (45.4)
|
< 0.001
|
|
1–3
|
182 (24.6)
|
148 (27.7)
|
34 (16.4)
| |
|
4 or above
|
211 (28.5=
|
132 (24.8)
|
79 (38.2)
| |
|
Hospital admission
|
|
No
|
470 (63.5)
|
470 (88.2)
|
0 (0)
|
< 0.001
|
|
Yes
|
270 (36.5)
|
63 (11.8)
|
207 (100)
| |
|
Acute symptoms profile
|
|
Cough (yes)
|
657 (88.8)
|
466 (87.4)
|
191 (92.3)
|
0.061
|
|
Fever (yes)
|
641 (86.6)
|
451 (84.6)
|
190 (91.8)
|
0.010
|
|
Headache (yes)
|
632 (85.4)
|
464 (87.1)
|
168 (81.2)
|
0.041
|
|
Myalgia/Arthralgia (yes)
|
572 (77.3)
|
423 (79.4)
|
149 (72.0)
|
0.031
|
|
Odynophagia (yes)
|
407 (55.0)
|
310 (58.2)
|
97 (46.9)
|
0.006
|
|
Chills (yes)
|
403 (54.5)
|
287 (53.8)
|
116 (56.0)
|
0.591
|
|
Rhinorrhea (yes)
|
353 (47.7)
|
276 (51.8)
|
77 (37.2)
|
< 0.001
|
|
Thoracic pain (yes)
|
282 (38.1)
|
171 (32.1)
|
111 (53.6)
|
< 0.001
|
|
Diarrhea (yes)
|
137 (18.5)
|
104 (19.5)
|
33 (15.9)
|
0.262
|
|
Polypnea (yes)
|
27 (3.6)
|
5 (0.9)
|
22 (10.6)
|
< 0.001
|
|
Personal history of
|
|
Tobacco use (current, yes)
|
80 (10.8)
|
47 (8.9)
|
32 (15.6)
|
0.009
|
|
Obesity (BMI 30 or higher) (yes)
|
162 (21.9)
|
100 (18.8)
|
61 (29.7)
|
0.001
|
|
Arterial hypertension (yes)
|
148 (20.0)
|
74 (13.9)
|
74 (35.6)
|
< 0.001
|
|
Cardiovascular disease (yes)
|
20 (2.7)
|
8 (1.5)
|
12 (5.9)
|
0.001
|
|
Type 2 diabetes mellitus (yes)
|
108 (14.6)
|
51 (9.5)
|
58 (27.8)
|
< 0.001
|
|
Asthma (yes)
|
33 (4.4)
|
22 (4.2)
|
10 (4.9)
|
0.676
|
|
COPD (yes)
|
27 (3.7)
|
9 (1.7)
|
18 (8.8)
|
< 0.001
|
|
Chronic kidney disease (yes)
|
13 (1.8)
|
3 (0.6)
|
10 (4.9)
|
< 0.001
|
|
Immunosuppression (yes)
|
19 (2.5)
|
8 (1.5)
|
10 (4.9)
|
< 0.001
|
|
HIV infection (yes)
|
5 (0.7)
|
3 (0.6)
|
2 (1.0)
|
0.549
|
