Table 5.
Risk Factors for Molecular Detection of Respiratory Syncytial Virus B
| Risk Factor | Total N | RSV-B+ (%) | Unadjusted OR (95% CI) | Adjusted ORa (95% CI) |
|---|---|---|---|---|
| Approximate Age Quartiles | ||||
| 1 month–1 year | 179a | 20 (11.2) | 10 (2.3–43.5) | 9.6 (2.1–43.8) |
| >1–2 years | 105 | 11 (10.5) | 9.3 (2.0–42.9) | 10.4 (2.1–51.2) |
| >2–18 years | 154 | 4 (2.6) | 2.1 (0.4–11.7) | 2.3 (0.4–10.9) |
| >18 years | 161 | 2 (1.2) | Ref. | Ref. |
| Household Size Quartiles | ||||
| 0–3 | 161 | 10 (6.2) | 2.9 (0.8–10.7) | 4.2 (1.1–16.7) |
| 4–5 | 177b | 16 (9.0) | 4.3 (1.2–15.1) | 4.1 (1.1–15.2) |
| ≥8 | 128 | 1 (0.8) | 2.9 (0.7–11.1) | 2.7 (0.7–10.9) |
| 6–7 | 133 | 1 (0.8) | Ref. | Ref. |
| Month | ||||
| July 15–August 14 | 51 | 3 (5.9) | 6.0 (0.6–59.2) | 7.9 (0.8–80.2) |
| August 15–September 14 | 41 | 1 (2.4) | 2.4 (0.1–39.3) | 3.8 (0.2–65.2) |
| September 15–October 14 | 53 | 0 (0.0) | — | — |
| October 15–November 14 | 46b | 1 (2.2) | 2.1 (0.1–34.9) | 3.0 (0.2–51.8) |
| November 15–December 14 | 42 | 1 (2.4) | 2.3 (0.1–38.3) | 2.8 (0.2–47.6) |
| December 15–January 14 | 43 | 0 (0.0) | — | — |
| January 15–February 14 | 71 | 4 (5.6) | 5.7 (0.6–52.4) | 6.5 (0.7–60.6) |
| February 15–March 14 | 40 | 5 (12.5) | 13.7 (1.5–121.5) | 13.3 (1.4–122.7) |
| March 15–April 14 | 43 | 7 (16.3) | 18.7 (2.2–157.1) | 19.9 (2.3–172.5) |
| April 15–May 14 | 72 | 14 (19.4) | 23.2 (3.0–180.9) | 23.1 (2.9–185.6) |
| June 15–July 14 | 97 | 1 (1.0) | Ref. | Ref. |
Abbreviations: CI, confidence interval; OR, odds ratio; Ref., reference; RSV-B, respiratory syncytial virus B.
aAdjusted for age quartiles, household size quartile, month of enrollment.
bOne pediatric patient specimen destroyed, assay results out of n = 599.