Table 1.
Characteristics of Active Duty US Military Health System Beneficiaries who Responded to ≥1 EPICC Survey With Fitness Questions
| SARS-CoV-2-(n = 1591), No. (%) | SARS-CoV-2+ (n = 1923), No. (%) | Total (n = 3514), No. (%) | P Value | |
|---|---|---|---|---|
| Age group | .04a | |||
| 18–29 y | 559 (35.1) | 598 (31.1) | 1157 (32.9) | |
| 30–39 y | 646 (40.6) | 828 (43.1) | 1474 (41.9) | |
| 40+ y | 386 (24.3) | 497 (25.8) | 883 (25.1) | |
| Female | 451 (28.3) | 552 (28.7) | 1003 (28.5) | .81a |
| Race/ethnicity | .17a | |||
| Asian | 88 (5.5) | 87 (4.5) | 175 (5.0) | |
| Black | 125 (7.9) | 134 (7.0) | 259 (7.4) | |
| Hispanic or Latino | 224 (14.1) | 311 (16.2) | 535 (15.2) | |
| Other | 173 (10.9) | 187 (9.7) | 360 (10.2) | |
| White | 981 (61.7) | 1204 (62.6) | 2185 (62.2) | |
| Service branch | .02a | |||
| Air Force | 301 (18.9) | 363 (18.9) | 664 (18.9) | |
| Army | 549 (34.5) | 728 (37.9) | 1277 (36.3) | |
| Marines | 83 (5.2) | 116 (6.0) | 199 (5.7) | |
| Navy | 318 (20.0) | 386 (20.1) | 704 (20.0) | |
| Other | 340 (21.4) | 330 (17.2) | 670 (19.1) | |
| BMI category | <.01a | |||
| Under/normal weight (BMI <25 kg/m2) | 418 (26.3) | 444 (23.1) | 862 (24.5) | |
| Overweight (BMI 25–29 kg/m2) | 825 (51.9) | 947 (49.2) | 1772 (50.4) | |
| Obese (BMI 30–34 kg/m2) | 289 (18.2) | 426 (22.2) | 715 (20.3) | |
| Severely obese (BMI ≥35 kg/m2) | 59 (3.7) | 106 (5.5) | 165 (4.7) | |
| Charlson comorbidity index category | .74a | |||
| 0 | 1453 (91.3) | 1758 (91.4) | 3211 (91.4) | |
| 1–2 | 129 (8.1) | 151 (7.9) | 280 (8.0) | |
| 3–4 | 4 (0.3) | 9 (0.5) | 13 (0.4) | |
| 5+ | 5 (0.3) | 5 (0.3) | 10 (0.3) | |
| Outpatient | 1589 (99.9) | 1872 (97.3) | 3461 (98.5) | <.01a |
| Maximum days from first SARS-CoV-2 positive to survey | ||||
| Median (Q1, Q3) | NA | 276.0 (136.0, 354.0) | 276.0 (136.0, 354.0) | |
| Min–max | NA | 15.0–404.0 | 15.0–404.0 | |
| Vaccination status at time of SARS-CoV-2 infection | ||||
| Unvaccinated | NA | 721 (37.5) | 721 (37.5) | |
| Fully vaccinated | NA | 727 (37.8) | 727 (37.8) | |
| Boosted | NA | 475 (24.7) | 475 (24.7) | |
| Infected or enrolled during different variant periods | <.01a | |||
| Pre-Delta (2/28/20–6/14/21) | 665 (41.8) | 645 (33.5) | 1310 (37.3) | |
| Delta (6/15/21–12/31/21) | 734 (46.1) | 425 (22.1) | 1159 (33.0) | |
| Omicron (1/1/22+) | 192 (12.1) | 853 (44.4) | 1045 (0.7) |
Abbreviations: BMI, body mass index; EPICC, Epidemiology, Immunology, and Clinical Characteristics of Emerging Infectious Diseases with Pandemic Potential; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
aPearson chi-square test.