Variable n/N (%) OR (95% CI) p value
Sex
F 120/1877 (6.4) ref
M 192/2026 (9.5) 1.53 (1.21 - 1.94) p<0.001
Age group
0-6 months 142/1058 (13.4) ref
7-12 months 50/663 (7.5) 0.53 (0.38 - 0.74) p<0.001
13-24 months 50/830 (6.0) 0.41 (0.30 - 0.58) p<0.001
25-36 months 36/646 (5.6) 0.38 (0.26 - 0.56) p<0.001
37-48 months 21/379 (5.5) 0.38 (0.24 - 0.61) p<0.001
49-60 months 13/327 (4.0) 0.27 (0.15 - 0.48) p<0.001
Clinical case
ILI 148/2672 (5.5) ref
SARI 164/1231 (13.3) 2.62 (2.08 - 3.31) p<0.001
Clinical symptoms
rhinorrhoea
no 27/332 (8.1) ref
yes 285/3571 (8.0) 0.98 (0.65 - 1.48) p=0.993
dyspnea
no 183/2987 (6.1) ref
yes 129/916 (14.1) 2.51 (1.98 - 3.19) p<0.001
wheezing
no 224/3444 (6.5) ref
yes 88/459 (19.2) 3.41 (2.61 - 4.47) p<0.001
chest indrawing
no 262/3582 (7.3) ref
yes 50/321 (15.6) 2.34 (1.69 - 3.24) p<0.001
diarrhoea
no 238/2973 (8.0) ref
yes 74/930 (8.0) 0.99 (0.76 - 1.30) p=0.983
vomiting
no 253/3295 (7.7) ref
yes 59/608 (9.7) 1.29 (0.96 - 1.74) p=0.107
lethargy
no 310/3867 (8.0) ref
yes 2/36 (5.6) 0.68 (0.16 - 2.82) p=0.816
inability to feed
no 258/3447 (7.5) ref
yes 54/456 (11.8) 1.66 (1.22 - 2.27) p=0.002
convulsion
no 294/3699 (7.9) ref
yes 18/204 (8.8) 1.12 (0.68 - 1.85) p=0.752
Diagnosis upon admission* Diagnosis upon admission*
Pneumonia 45/332 (13.6) ref
Bronchopneumonia Bronchopneumonia 14/46 (30.4) 2.79 (1.32 - 5.63) p=0.006
Bronchiolitis 63/311 (20.3) 1.62 (1.07 - 2.46) p=0.030
Not determined or others Not determined or others 42/542 (7.7) - -