Table 2 Length of ARI and presence of symptoms during pre-pandemic and pandemic periods

Length of ARI in days (Mean, 95% CI)

12.3 (11.3–13.4)

8.6 (7.5–9.7)

Proportion of days of ARI with …(%, 95% CI)

 runny nose

71.2 (70.4–71.9)

70.8 (69.7–71.6)

 cough

61.9 (59.7–63.8)

56.5 (53.2–59.1)

 increased attachment

14.3 (13.7–14.9)

17.3 (16.6–20.2)

 increased need to sleep

13.5 (12.8–14.1)

11.3 (9.5–12.6)

 loss of appetite

12.2 (11.4–12.8)

9.7 (8.2–10.9)

 fever

7.5 (6.9–7.9)

5.4 (4.6–6.1)

 wheezing

3.3 (2.3–4.2)

4.1 (1.4–6.1)

 sore throat

3.1 (2.5–3.6)

4.6 (3.3–5.6)

 chills

0.8 (0.5–1.1)

1.0 (0.4–1.5)

Proportion of all ARI that were medically attended (%, 95% CI)

14.0 (10.8–17.2)

10.0 (3.5–16.5)

Proportion of ARI with hospital admissions

0.6%

0.0%