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. 2021 Oct 15;21(20):6853. doi: 10.3390/s21206853

Table 2.

Characteristics and descriptions of the features used in this study.

Feature Class Total (1517) COPVID-19 Nengative (363) COVID-19 Positive (1054)
n % n % n %
Symptoms
Fever True 832 (58.7%) 199 (54.8%) 633 (60%)
False 585 (41.3%) 164 (45.2%) 421 (40.0%)
Fatigue True 466 (32.9%) 144 (39.7%) 322 (30.6%)
False 951 (67.1%) 219 (60.3%) 732 (69.4%)
Dry-Cough True 830 (58.6%) 200 (55.1%) 630 (59.8%)
False 587 (41.4%) 163 (44.9%) 424 (40.2%)
Headache True 444 (31.3%) 126 (34.7%) 318 (30.2%)
False 973 (68.7%) 217 (65.3%) 756 (69.8%)
Pains False 185 (13.1%) 45 (12.4%) 140 (13.3%)
True 1232 (86.9%) 318 (87.6%) 914 (86.7%)
Difficulty in Breathing True 397 (28.0%) 151 (41.6%) 246 (23.3%)
False 1020 (72%) 412 (58.4%) 808 (76.7%)
Sore-Throat True 322 (22.7%) 93 (25.6%) 229 (21.7%)
False 1095 (77.3%) 270 (74.4%) 825 (79.3%)
Anosmia True 154 (10.9%) 18 (5.0%) 136 (12.9%)
False 1263 (89.1%) 345 (95.0%) 918 (87.1%)
Ageusia True 96 (6.8%) 8 (2.2%) 88 (8.3%)
False 1321 (93.2%) 355 (97.8%) 966 (91.7%)
Diarrhea True 213 (15.0%) 55 (15.2%) 158 (15.0%)
False 1204 (85.0%) 308 (84.8%) 896 (85.0%)
No Symptom True 63 (4.0%) 1 (0.3%) 62 (5.0%)
False 1354 (96.0%) 362 (99.7%) 992 (94.1%)
Basic information The age of a tested individual is based on the WHO age group standard.
Age_0-9 True 24 (1.7%) 1 (0.3%) 23 (2.2%)
False 1393 (98.3%) 362 (99.7%) 1031 (97.8%)
Age_10-19 True 60 (4.2%) 20 (5.5%) 40 (3.8%)
False 1357 (95.8%) 343 (94.5%) 1014 (96.2%)
Age_20-24 True 106 (7.5%) 30 (8.3%) 76 (7.2%)
False 1311 (92.5%) 333 (91.7%) 978 (92.8%)
Age_25-59 True 920 (64.9%) 227 (62.5%) 693 (65.7%)
False 497 (35.1%) 136 (47.5) 361 (34.3%)
Age_60+ True 304 (21.5%) 84 (23.1%) 220 (20.9%)
False 1113 (78.5%) 279 (76.9%) 834 (79.%)
Gender Female True 671 (47.4%) 161 (44.4%) 510 (48.4%)
False 746 (52.6%) 202 (55.6%) 544 (51.6%)
Gender Male True 746 (52.6%) 202 (55.6%) 544 (51.6%)
False 671 (47.4%) 161 (44.4%) 510 (48.4%)
The severity of a patients’ illness
Severity Mild True 967 (68.2%) 181 (49.9%) 786 (74.6%)
False 450 (31.8%) 182 (99.7%) 268 (26.4%)
Severity Moderate True 396 (27.9%) 158 (43.5%) 238 (22.6%)
False 1021 (72.1%) 205 (56.%) 816 (77.4%)
Severity Severe True 45 (3.2%) 21 (5.8%) 24 (2.3%)
False 1372 (96.8%) 342 (94.2%) 1030 (97.7%)
Severity Critical True 10 (0.7%) 3 (0.8%) 7 (0.7%)
False 1407 (99.3%) 360 (99.2%) 1047 (99.3%)
Commorbidity
None Experiencing True 1,189 (83.9%) 314 (86.5%) 875 (83.0%)
False 228 (16.1%) 49 (13.5%) 179 (17.0%)