Table. Characteristics of Participants With the SARS-CoV-2 Mu Variant and Other Variants in Colombia, From July 2020 to August 2021.
| Characteristic | Total, No. (%) |
Mu variant, No. (%) | All other variantsa | VOCsb | Non-VOCsc | |||
|---|---|---|---|---|---|---|---|---|
| No. (%) | P valued | No. (%) | P value | No. (%) | P value | |||
| No. of patients (%) | 863 (100) | 283 (32.8) | 580 (67.2) | NA | 341 (39.5) | NA | 239 (27.7) | NA |
| Age, ye | ||||||||
| ≤17 | 79 (9.2) | 20 (7.1) | 59 (10.2) | .25 | 39 (11.4) | .07 | 20 (8.4) | .58 |
| 18-29 | 176 (20.4) | 62 (21.9) | 114 (19.7) | 69 (20.2) | 45 (18.8) | |||
| 30-39 | 188 (21.8) | 55 (19.4) | 133 (22.9) | 81 (23.8) | 52 (21.8) | |||
| 40-49 | 118 (13.7) | 45 (15.9) | 73 (12.6) | 46 (13.5) | 27 (11.3) | |||
| 50-59 | 113 (13.1) | 33 (11.7) | 80 (13.8) | 49 (14.4) | 31 (13.0) | |||
| ≥60 | 189 (21.9) | 68 (24.0) | 121 (20.9) | 57 (16.7) | 64 (26.8) | |||
| Sex | ||||||||
| Male | 431 (49.9) | 143 (16.6) | 288 (33.3) | .86 | 165 (48.4) | .65 | 123 (51.5) | .90 |
| Female | 432 (50.1) | 140 (16.2) | 292 (33.9) | 176 (51.6) | 116 (48.5) | |||
| Clinical outcome | ||||||||
| Asymptomatic or mild case | 636 (73.7) | 213 (75.3) | 423 (72.9) | .55 | 269 (78.9) | .53 | 154 (64.4) | .01 |
| Hospitalized or ICU stay | 129 (14.9) | 37 (13.1) | 92 (15.9) | 40 (11.7) | 52 (21.8) | |||
| Death | 98 (11.4) | 33 (11.7) | 65 (11.2) | 32 (9.4) | 33 (13.8) | |||
| Comorbiditiesf | ||||||||
| None | 588 (68.1) | 201(71.0) | 387 (66.7) | .41 | 236 (69.2) | .87 | 151 (63.2) | .13 |
| ≥1 | 209 (24.2) | 61 (21.6) | 148 (25.5) | 79 (23.2) | 69 (28.9) | |||
| Other | 66 (7.6) | 21 (7.4) | 45(7.6) | 26 (7.6) | 19 (7.9) | |||
Abbreviations: ICU, intensive care unit; NA not applicable; VOC, variant of concern.
a
Includes Alpha, Delta, Gamma, Lambda, B.1.625, and other lineages.
b
Includes Alpha, Delta, and Gamma.
c
Includes Lambda, B.1.625, and other lineages.
d
Differences among the Mu variant, VOCs, and non-VOCs were tested with the χ2 test; P < .05 was considered significant.
e
The median age was 39 years (range, 0-99 years); the mean (SD) age was 42.4 (20.9) years.
f
Comorbidities include risk factors such as diabetes, coronary artery disease, chronic obstructive pulmonary disease, HIV, obesity, chronic kidney failure, hypertension, asthma, cancer, cerebrovascular disease, pregnancy, and smoker status. “Other” indicates conditions not listed here.