The Associations of Baseline Characteristics on ARI, Days off because of ARI, and Cathelicidine Through 14-wk Follow-up
| . | ARI (N = 403) . | D Off Because of ARI (N = 399) . | Cathelicidin (N = 401) . |
|---|---|---|---|
| . | ≥2 versus 0–1 . | ≥6 versus 0–5 . | ≥55 versus < 55 . |
| . | OR (95% CI) . | OR (95% CI) . | OR (95% CI) . |
| S-25(OH)D (nmol/L) | |||
| ≥50 | 1.00 | 1.00 | 1.00 |
| <50 | 2.11 (1.19–3.74) | 2.26 (1.27–4.03) | .49 (.24–.99) |
| Season | |||
| Summer | 1.00 | 1.00 | 1.00 |
| Winter | 1.95 (1.10–3.45) | 1.25 (.70–2.25) | 1.06 (.57–1.95) |
| Use of vitamin D supplement | |||
| Yes | 1.00 | 1.00 | 1.00 |
| No | 1.44 (.76–2.70) | .94 (.49–1.79) | .74 (.37–1.46) |
| Body mass index | |||
| <25 | 1.00 | 1.00 | 1.00 |
| ≥25 | .86 (.50–1.48) | .75 (.43–1.30) | 1.33 (.77–2.30) |
| Aerobic fitness (m) | |||
| ≥2500 | 1.00 | 1.00 | 1.00 |
| <2500 | 1.60 (.93–2.75) | 1.66 (.96–2.85) | 1.30 (.75–2.27) |
| Interactions | |||
| S-25(OH)D*Group | P = .75 | P = .24 | P = .45 |
| S-25(OH)D*Season | P = .29 | P = .17 | P = .78 |
| . | ARI (N = 403) . | D Off Because of ARI (N = 399) . | Cathelicidin (N = 401) . |
|---|---|---|---|
| . | ≥2 versus 0–1 . | ≥6 versus 0–5 . | ≥55 versus < 55 . |
| . | OR (95% CI) . | OR (95% CI) . | OR (95% CI) . |
| S-25(OH)D (nmol/L) | |||
| ≥50 | 1.00 | 1.00 | 1.00 |
| <50 | 2.11 (1.19–3.74) | 2.26 (1.27–4.03) | .49 (.24–.99) |
| Season | |||
| Summer | 1.00 | 1.00 | 1.00 |
| Winter | 1.95 (1.10–3.45) | 1.25 (.70–2.25) | 1.06 (.57–1.95) |
| Use of vitamin D supplement | |||
| Yes | 1.00 | 1.00 | 1.00 |
| No | 1.44 (.76–2.70) | .94 (.49–1.79) | .74 (.37–1.46) |
| Body mass index | |||
| <25 | 1.00 | 1.00 | 1.00 |
| ≥25 | .86 (.50–1.48) | .75 (.43–1.30) | 1.33 (.77–2.30) |
| Aerobic fitness (m) | |||
| ≥2500 | 1.00 | 1.00 | 1.00 |
| <2500 | 1.60 (.93–2.75) | 1.66 (.96–2.85) | 1.30 (.75–2.27) |
| Interactions | |||
| S-25(OH)D*Group | P = .75 | P = .24 | P = .45 |
| S-25(OH)D*Season | P = .29 | P = .17 | P = .78 |
Multivariable-adjusted logistic regression. Interaction effects between S-25(OH)D with group and season were tested. Statistically nonsignificant interactions P ≥ .05 were excluded from the models.
Abbreviations: S-25(OH)D, Serum 25(OH)D; ARI, acute respiratory infection; CI, confidence interval; OR, odds ratio.
The Associations of Baseline Characteristics on ARI, Days off because of ARI, and Cathelicidine Through 14-wk Follow-up
| . | ARI (N = 403) . | D Off Because of ARI (N = 399) . | Cathelicidin (N = 401) . |
|---|---|---|---|
| . | ≥2 versus 0–1 . | ≥6 versus 0–5 . | ≥55 versus < 55 . |
| . | OR (95% CI) . | OR (95% CI) . | OR (95% CI) . |
| S-25(OH)D (nmol/L) | |||
| ≥50 | 1.00 | 1.00 | 1.00 |
| <50 | 2.11 (1.19–3.74) | 2.26 (1.27–4.03) | .49 (.24–.99) |
| Season | |||
| Summer | 1.00 | 1.00 | 1.00 |
| Winter | 1.95 (1.10–3.45) | 1.25 (.70–2.25) | 1.06 (.57–1.95) |
| Use of vitamin D supplement | |||
| Yes | 1.00 | 1.00 | 1.00 |
| No | 1.44 (.76–2.70) | .94 (.49–1.79) | .74 (.37–1.46) |
| Body mass index | |||
| <25 | 1.00 | 1.00 | 1.00 |
| ≥25 | .86 (.50–1.48) | .75 (.43–1.30) | 1.33 (.77–2.30) |
| Aerobic fitness (m) | |||
| ≥2500 | 1.00 | 1.00 | 1.00 |
| <2500 | 1.60 (.93–2.75) | 1.66 (.96–2.85) | 1.30 (.75–2.27) |
| Interactions | |||
| S-25(OH)D*Group | P = .75 | P = .24 | P = .45 |
| S-25(OH)D*Season | P = .29 | P = .17 | P = .78 |
| . | ARI (N = 403) . | D Off Because of ARI (N = 399) . | Cathelicidin (N = 401) . |
|---|---|---|---|
| . | ≥2 versus 0–1 . | ≥6 versus 0–5 . | ≥55 versus < 55 . |
| . | OR (95% CI) . | OR (95% CI) . | OR (95% CI) . |
| S-25(OH)D (nmol/L) | |||
| ≥50 | 1.00 | 1.00 | 1.00 |
| <50 | 2.11 (1.19–3.74) | 2.26 (1.27–4.03) | .49 (.24–.99) |
| Season | |||
| Summer | 1.00 | 1.00 | 1.00 |
| Winter | 1.95 (1.10–3.45) | 1.25 (.70–2.25) | 1.06 (.57–1.95) |
| Use of vitamin D supplement | |||
| Yes | 1.00 | 1.00 | 1.00 |
| No | 1.44 (.76–2.70) | .94 (.49–1.79) | .74 (.37–1.46) |
| Body mass index | |||
| <25 | 1.00 | 1.00 | 1.00 |
| ≥25 | .86 (.50–1.48) | .75 (.43–1.30) | 1.33 (.77–2.30) |
| Aerobic fitness (m) | |||
| ≥2500 | 1.00 | 1.00 | 1.00 |
| <2500 | 1.60 (.93–2.75) | 1.66 (.96–2.85) | 1.30 (.75–2.27) |
| Interactions | |||
| S-25(OH)D*Group | P = .75 | P = .24 | P = .45 |
| S-25(OH)D*Season | P = .29 | P = .17 | P = .78 |
Multivariable-adjusted logistic regression. Interaction effects between S-25(OH)D with group and season were tested. Statistically nonsignificant interactions P ≥ .05 were excluded from the models.
Abbreviations: S-25(OH)D, Serum 25(OH)D; ARI, acute respiratory infection; CI, confidence interval; OR, odds ratio.
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