| Total N=88 (%) | nH1N1 Virus Positive Group n=17 (%) | Non-nH1N1 Virus¥ Positive Group n=43 (%) | No Vrus Detected Group n=28(%) | P-Value | |
|---|---|---|---|---|---|
| Age in Months: Median (IQR) | 20 (6-57) | 59 (7-85) | 11 (5-22) | 33 (11-84) | 0.002* |
| Gender | 0.415** | ||||
| Male | 39 (44%) | 9 (53%) | 16 (37%) | 14 (50%) | |
| Female | 49 (56%) | 8 (47%) | 27 (63%) | 14 (50%) | |
| Ethnicity/Race | 0.051** | ||||
| Hispanic | 60 (68%) | 15 (88%) | 30 (70%) | 15 (54%) | |
| Non-Hispanic | 28 (32%) | 2 (12%) | 13 (30%) | 13 (46%) | |
| Black | 2 | 0 | 2 | 0 | |
| White | 15 | 1 | 6 | 8 | |
| Asian | 11 | 1 | 5 | 5 | |
| Clinical Outcomes | |||||
| Hospitalized | 16 (18%) | 2 (12%) | 10 (23%) | 4 (14%) | 0.472** |
| Hours in ED: Median (IQR)+ | 3.6 (2.3-5.1) | 3.5 (2.0-5.1) | 3.5 (2.6-5.3) | 4.1 (1.9-5.1) | 0.873* |
| Supplemental Oxygen | 6 (7%) | 0 (0%) | 4 (9%) | 2 (7%) | 0.435** |
| Hours of Oxygen: Median (IQR) | 34 (12-55) | NA | 42 (31-79) | NA | 0.064* |
| Intravenous Fluids (IVF) | 14 (16%) | 1 (6%) | 8 (19%) | 5 (18%) | 0.451** |
| Hours of IVF: Median (IQR) | 21 (5-40) | NA | 33 (19-41) | 9 (3-18) | 0.057* |
| Healthcare visit after discharge | 18 (21%) | 5 (29%) | 6 (15%) | 7 (26%) | 0.377** |
| Nasal Wash Nitrate (M) | |||||
| Median (IQR) Nitrate (overall) | 3.4 (0.0-8.6) | 2.2 (0.0-10.8) | 4.7 (0.2-11.5) | 1.6 (0.0-4.9) | 0.076* |
| Nitrate Detectable | 0.647** | ||||
| Nitrate Undetectable | 26 (30%) | 6 (35%) | 10 (23%) | 10 (36%) | |
| Missing | 1 (2%) | 0 (0%) | 1 (2%) | 0 (0%) | |
| Nitrate Detectable | 61 (69%) | 11 (65%) | 32 (74%) | 18 (64%) | |
| Median (IQR) Nitrate (when Detected) | 5.3 (3.0-11.3) | 5.3 (2.2-13.5) | 7.5 (3.6-14.4) | 4.3 (1.7-5.6) | 0.061* |
| Nasal Wash IgA Detected | 61 (69%) | 11 (65%) | 39 (91%) | 11 (39%) | <0.0001** |