Table 2. Baseline Characteristics of 1236 Individuals Enrolled in the Coronavirus Household Evaluation and Respiratory Testing Studya.
| Characteristic | No. (%) | ||
|---|---|---|---|
| All participants (N = 1236) | New York City, New York (n = 414) | Utah (n = 822) | |
| Age group, y | |||
| 0-4 | 176 (14) | 58 (14) | 118 (14) |
| 5-11 | 313 (25) | 98 (24) | 215 (26) |
| 12-17 | 163 (13) | 49 (12) | 114 (14) |
| 18-29 | 38 (3) | 17 (4) | 21 (3) |
| 29-39 | 242 (20) | 79 (19) | 163 (20) |
| 40-49 | 230 (19) | 80 (19) | 150 (18) |
| 50-59 | 58 (5) | 26 (6) | 32 (4) |
| ≥60 | 16 (1) | 7 (2) | 9 (1) |
| Sex/gender | |||
| Male | 576 (47) | 182 (44) | 394 (48) |
| Female | 656 (53) | 230 (56) | 426 (52) |
| Nonbinary/third gender | 4 (<1) | 2 (<1) | 2 (<1) |
| Race and ethnicityb | |||
| Black, Non-Hispanic | 18 (1) | 16 (4) | 2 (<1) |
| Hispanic | 281 (23) | 234 (57) | 47 (6) |
| White, Non-Hispanic | 881 (71) | 139 (34) | 742 (90) |
| Missing/declined | 9 (1) | 7 (1) | 2 (<1) |
| Other, Non-Hispanic | 47 (4) | 18 (4) | 29 (4) |
| ≥1 Medical conditionc | 383 (31) | 121 (29) | 262 (32) |
| Asthma | 177 (14) | 53 (13) | 124 (15) |
| Medical conditions besides asthma | 262 (21) | 79 (19) | 183 (22) |
| Adults (n = 584) | |||
| Highest educational level | |||
| Less than high school graduation | 33 (6) | 30 (14) | 3 (1) |
| High school graduation | 49 (8) | 25 (12) | 24 (6) |
| Some college or technical school | 87 (15) | 34 (16) | 53 (14) |
| College graduation | 402 (69) | 109 (52) | 293 (78) |
| Missing/declined | 13 (2) | 11 (5) | 2 (<1) |
| Pregnant, No./total No. of female participants aged 13-50 yd | 9/349 (3) | 2/125 (2) | 7/224 (3) |
| Employment and telework status | |||
| Employed, teleworking | 180 (29) | 45 (22) | 135 (35) |
| Employed, not teleworking | 242 (41) | 69 (33) | 173 (45) |
| Not employed | 141 (24) | 79 (38) | 62 (17) |
| Missing/declined | 21 (3) | 16 (8) | 5 (1) |
| Receipt of COVID-19 vaccine during study participatione | |||
| Partially vaccinated | 110 (19) | 31 (15) | 79 (21) |
| Fully vaccinated | 221 (38) | 71 (34) | 150 (40) |
| Did not receive vaccine | 251 (43) | 107 (51) | 144 (38) |
| Unknown status | 2 (<1) | 0 | 2 (1) |
| Fully vaccinated status by month, No/.total No. of individuals fully vaccinatede | |||
| January | 25/221 (11) | 1/71 (1) | 24/150 (16) |
| February | 67/221 (30) | 19/71 (27) | 48/150 (32) |
| March | 69/221 (31) | 18/71 (25) | 51/150 (34) |
| April | 58/221 (26) | 32/71 (45) | 26/150 (17) |
| Unknown month | 2/221 (1) | 1/71 (1) | 1/150 (1) |
| Children (n = 652) | |||
| Childcare outside the home during cohort participation | 129/652 (20) | 42/205 (20) | 87/447 (19) |
| School outside the home during cohort participation | 416/652 (64) | 79/205 (39) | 337/447 (75) |
All characteristics were ascertained at enrollment only unless otherwise specified.
Race and ethnicity are based on participant self-report. Participants who self-identified as Hispanic are categorized as Hispanic, regardless of self-reported race. Participants who self-identified as non-Hispanic are categorized based on their self-reported races. The category of other, non-Hispanic includes participants who self-identified as non-Hispanic and Asian, Native Hawaiian/Pacific Islander, or multiple races.
Based on questionnaires that asked about the following medical conditions: asthma; chronic lung diseases other than asthma; chronic metabolic diseases, such as diabetes types 1 and 2 and thyroid disease; blood disorders, such as thalassemia and sickle cell disease; hypertension; cardiovascular diseases; bladder or kidney diseases; liver diseases; immunocompromising conditions; neurologic or neuromuscular diseases; and rheumatologic conditions. Among the 1236 participants in this analysis, 17 reported having immunocompromising conditions, including 15 adults and 2 children.
The denominator excludes individuals with unknown status (n = 3).
COVID-19 vaccination status was based on self-reporting. Vaccination information was only collected among adults during the period included in this analysis. Fully vaccinated was defined as having received 2 doses of vaccines with a recommended 2-dose series or 1 dose of a vaccine for which only a single dose was recommended. Partially vaccinated was defined as receipt of 1 dose of vaccines with a recommended 2-dose series.