Table 1.
Demographic Characteristics, Comorbidities, and Baseline Symptoms
| Overall (n = 272) | Unvaccinated (n = 160) | Vaccinated (n = 112) | P Value | |
|---|---|---|---|---|
| Women, No. (%) | 159 (58) | 99 (62) | 60 (54) | .17 |
| Age, median [IQR], y | 46 [38–53] | 44 [38–51] | 47 [39–56] | .02 |
| BMI, median [IQR], kg/m2 | 31.2 [27.4–36.4] | 31.5 [27.8–36.0] | 31.0 [27.3–37.0] | .27 |
| Race, No. (%) | ||||
| Native American | 6 (2.2) | 2 (1.2) | 4 (3.6) | .39 |
| Asian | 6 (2.2) | 1 (0.6) | 5 (4.5) | .09 |
| Native Hawaiian or Pacific Islander | 2 (0.7) | 0 (0) | 2 (1.8) | .33 |
| Black or African American | 16 (5.9) | 11 (6.9) | 5 (4.5) | .57 |
| White | 217 (80) | 133 (83) | 84 (75) | .14 |
| Other/declined | 17 (6.2) | 8 (5.0) | 9 (8.0) | .45 |
| Insurance status, No. (%) | ||||
| Private | 170 (66) | 97 (63) | 73 (72) | <.01 |
| Public | 29 (11) | 23 (15) | 6 (5.9) | |
| Medicare | 24 (9.4) | 10 (6.5) | 14 (14) | |
| None | 33 (13) | 25 (16) | 8 (7.9) | |
| No. of high-risk comorbiditiesa (+SD) | 0.45 (+0.55) | 0.44 (+0.56) | 0.46 (+0.55) | .70 |
| Days from symptom onset to sample collection, median [IQR] | 5 [4–6] | 5 [4–6] | 5 [4–6] | .68 |
| No. of symptoms,b mean (+SD) | 3.2 (+2.5) | 3.4 (+2.7) | 2.8 (+2.3) | .08 |
| Vomited in the last 24 h, No. (%) | 21 (10) | 13 (10) | 8 (9.9) | 1.0 |
| Diarrhea in the last 24 h, No. (%) | 26 (13) | 23 (19) | 3 (3.7) | <.01 |
| Loss of taste, No. (%) | 124 (60) | 71 (56) | 53 (65) | .19 |
| Loss of smell, No. (%) | 122 (59) | 71 (56) | 51 (63) | .39 |
| No. of asymptomatic (%) | 24 (12) | 13 (10) | 11 (14) | .51 |
Abbreviations: BMI, body mass index; IQR, interquartile range.
Mean (+SD) of high-risk comorbidities, including diabetes mellitus, coronary artery disease, congestive heart failure, or obesity.
Moderate or severe value for symptoms: chills or shivering, cough, feeling hot or feverish, headache, fatigue, muscle or body ache, nausea, shortness of breath or difficulty breathing, sore throat, or stuffy or runny nose.