Characteristics | Adv (n = 67) | Non-Adv (n = 184) | Total (n = 251) | P value |
---|---|---|---|---|
Age (year, M[Q1-Q3]) | 21.5 [20.0–22.0] | 21.6 [20.0–22.0] | 21.6 [20.0–22.0] | 0.559 |
Male [n (%)] | 67 (100) | 184 (100) | 251 (100) | NA |
Smoking [n (%)] | < 0.001 | |||
Never smoker | 45 (67.1) | 125 (67.9) | 170 (67.7) | |
Ex-smoker | 7 (10.4) | 49 (26.6) | 56 (22.3) | |
Current smoker | 15 (22.4) | 10 (5.4) | 25 (9.9) | |
Recent smoker (< 30 days) | 4 (6.0) | 0 (0) | 4 (1.6) | |
BMI (kg/m2, x ± s) | 23.6 ± 4.3 | 23.2 ± 3.3 | 23.3 ± 3.6 | 0.664 |
Underlying condition [n(%)] | 0.575 | |||
Asthma | 3 (4.5) | 2 (1.1) | 5 (2.0) | |
Allergic rhinitis | 2 (3.0) | 1 (0.5) | 3 (1.2) | |
Pneumothorax | 1 (1.5) | 1 (0.5) | 2 (0.8) | |
Symptom duration(Time from symptom onset to admission) (d, x ± s) | 3.6 ± 1.8 | 3.2 ± 2.3 | 3.3 ± 2.1 | 0.224 |
Symptom and sign [n(%)] | ||||
Fever | 66 (98.5) | 157 (85.4) | 223 (88.8) | 0.021 |
Cough | 65 (96.9) | 157 (85.4) | 222 (88.4) | 0.025 |
Myalgia | 31 (46.5) | 56 (30.4) | 87 (34.7) | 0.001 |
Dyspnea(> mMRC scale II) | 5 (7.7) | 11 (6.1) | 16 (6.4) | 0.286 |
Purulent sputum | 23 (33.8) | 58 (31.7) | 81 (32.3) | 0.335 |
Headache | 48 (72.2) | 96 (52.4) | 144 (57.4) | 0.014 |
Nasal congestion/rhinorrhea | 44 (65.3) | 103 (55.8) | 147 (58.6) | 0.015 |
Initial vital signs (x ± s) | ||||
Systolic blood pressure (mmHg) | 125.4 ± 12.5 | 124.7 ± 13.1 | 124.9 ± 13.0 | 0.598 |
Heart rate (beats/min) | 92.5 ± 14.6 | 91.2 ± 15.2 | 91.7 ± 14.9 | 0.335 |
Respiratory rate (beats/min) | 18.5 ± 3.2 | 18.3 ± 3.8 | 18.3 ± 3.6 | > 0.999 |
SpO2 on room air (%) | 97.5 ± 2.3 | 96.8 ± 2.0 | 97.0 ± 2.1 | 0.679 |
Pneumonia severity index (PSI) score M[Q1-Q3] | 71.0 [61.0–95.0] | 75 [60.0–96.0] | 74 [60.5–95.9] | 0.204 |