Incidence, Pattern, and Severity of Acute Respiratory Infections among Infants and Toddlers of a Peri-Urban Area of Delhi: A 12-Month Prospective Study
Table 2
Incidence, clinical pattern, and severity of ARI in infants and toddlers.
Age cohort (child-weeks of exposure in age cohort, )
Number of episodes (incidence per 100 child-weeks)
No pneumonia, cold, and cough#
Pneumonia*
Severe pneumonia
Otitis media
Any ARI
0-1 (118)
10 (8.5)
2 (1.7)
2 (1.7)
—
12 (10.2)
2–5 (652)
49 (7.5)
6 (0.9)
1 (0.2)
1 (0.2)
55 (8.4)
6–11 (1505)
129 (8.6)
17 (1.1)
—
1 (0.001)
146 (9.7)
12–17 (1207)
83 (6.9)
9 (0.8)
—
1 (0.001)
92 (7.6)
18–23 (1098)
72 (6.6)
7 (0.6)
—
1 (0.001)
79 (7.2)
24–29 (680)
39 (5.7)
4 (0.6)
—
1 (0.001)
43 (6.3)
30–35 (243)
8 (3.3)
2 (0.8)
—
—
10 (4.1)
All ages (5503)
390 (7.1)
47 (0.85)
3 (0.054)
(0.09)
437 (7.9)
Including severe pneumonia, #including otitis media; , .404, and df = 18. Statistically significant for under 2 months children having ARI as compared to children with ARI from other age groups.
