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Table 3 Secondary attack rates of household members in individual models

From: Efficacy of baloxavir marboxil on household transmission of influenza infection

  n Secondary attack rates 95% CI
Age of household patients (years)
 0–6 47     27.5 15.9–41.7
 7–19 69     13.5 6.7–23.5
 20–64 243     12.1 8.3–16.8
 ≥ 65 59     12.7 6.7–23.5
Age of index patients (years)
 0–6 67     18.3 10.1–29.3
 7–19 128     12.1 7.1–18.9
 20–64 167     14.5 9.6–20.7
 ≥ 65 56     13.6 6.0–25.0
Household size
 ≤ 3 116     14.8 9.0–22.3
 4 163     14.9 9.9–21.2
 ≥ 5 139     13.1 8.1–19.7
Influenza vaccination in the same season in household patients
 Yes 140     14.3 8.9–21.2
 No 278     14.2 10.5–18.8
Index patients with treatment
 Baloxavir 122     9.0 4.6–15.6
 Oseltamivir 296     13.5 9.8–17.9
Respiratory tract symptoms in index patients
 Yes 157     15.9 10.6–22.6
 No 261     13.3 9.5–17.9
  1. CI Confidence interval