Prospective Study
Copyright ©The Author(s) 2019.
World J Clin Pediatr. Apr 9, 2019; 8(2): 33-42
Published online Apr 9, 2019. doi: 10.5409/wjcp.v8.i2.33
Table 1 Respiratory syncytial virus and non-respiratory syncytial viruses associated with lower respiratory tract infection in young children
RSV94 (24.5%)
All virus (RSV and/or other virus1)130 (34.0%)
Co-infection with multiple viruses21 (5.5%)
Non-RSV viruses alone157 (14.8%)
Virus-negative253 (66%)
Total enrolled383
Table 2 Risk factors for respiratory syncytial virus infection
VariableRSV negative (n = 289)RSV positive (n = 94)P value
Birth weight (≥ 2500 g)No55 (75.3)18 (24.7)0.980
Yes234 (75.4)76 (24.6)
Breast fed exclusively for ≥ 3 moNo66 (68.0)31 (32.0)0.049
Yes223 (77.9)63 (22.1)
Gestational age (≥ 37 wk)No33 (75.0)11 (25.0)0.940
Yes256 (75.5)83 (24.5)
Neonatal complicationsNo241 (74.8)81 (25.2)0.522
Yes48 (78.6)13 (21.4)
Family history of asthmaNo256 (75.9)81 (24.1)0.532
Yes33 (71.7)13 (28.3)
History of smoking in the householdNo220 (73.8)78 (26.2)0.165
Yes69 (81.1)16 (18.9)
Kitchen typeIndoor with partition202 (74.2)70 (25.8)0.484
Indoor without partition85 (78.7)23 (21.3)
Open air2 (66.6)1 (33.4)
Cooking fuelElectric2 (100)0 (0)0.695
Kerosene6 (66.6)3 (33.4)
Liquefied petroleum gas241 (74.8)81 (25.2)
Wood/dung40 (80.0)10 (20.0)
PICU admissionNo245 (75.2)81 (24.8)0.741
Yes44 (77.2)13 (22.8)
Table 3 Risk factors among respiratory viral infection
VariableNo virus detected (n = 253)Respiratory viral positive (n = 130)P value
Birth weight (≥ 2500 g)No48220.623
Yes205108
Breast fed exclusively for ≥ 3 moNo198920.106
Yes5538
Gestational age (≥ 37 wk)No30140.752
Yes223116
Neonatal complicationsNo2141110.836
Yes3919
Family history of asthmaNo2141140.751
Yes2716
History of smoking in the householdNo1951060.315
Yes5824
Kitchen typeIndoor with partition174990.313
Indoor without partition7730
Open air21
PICU admissionNo2141120.683
Yes3918
Table 4 Comparison of outcome between respiratory syncytial virus positive and respiratory syncytial virus negative
Days ofRSV
P value
PositiveNegative
Hospital stay4.0 (1.0-17.0)4.0 (1.0-65.0)0.031
Oxygen use1.5 (1.0-9.0)2.0 (1.0-65.0)0.176
Antibiotic use4.0 (1.0-12.0)4.0 (1.0-29.0)0.303
Nebulization use3.0 (1.0-17.0)4.0 (1.0-65.0)0.012
PICU stay2.5 (1.0-10.0)2.00 (1.0-20.0)0.547
Table 5 Association of signs and symptoms with respiratory syncytial virus infection
VariableRSV positive(n = 94)RSV negative(n = 289)P value
FeverYes63 (23.8)201 (76.2)0.645
No31 (26.0)88 (74.0)
RhinorrheaYes81 (24.6)248 (75.4)0.931
No13 (24.0)41 (76.0)
CoughYes85 (23.5)276 (76.5)0.066
No9 (40.9)13 (59.1)
Fast breathingYes62 (24.5)191 (75.5)0.981
No32 (24.6)98 (75.4)
WheezingYes45 (22.9)151 (77.1)0.461
No49 (26.2)138 (73.8)
Auscultatory crepitationsYes73 (25.7)210 (76.3)0.338
No21 (21.0)79 (79.0)
Chest retractionsYes52 (25.6)151 (74.4)0.604
No42 (23.3)138 (76.6)