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Table 3 Demographic characteristics, signs, symptoms and case definitions associated with laboratory confirmed RSV infections

From: Evaluation of case definitions to detect respiratory syncytial virus infection in hospitalized children below 5 years in Rural Western Kenya, 2009–2013

  RSV + ve RSV -ve Crude RR p-value
  n = 470 n = 3340 (95 % CI)  
Demographic characteristics n % n %   
Age group       
  < 1 year 238 50.6 1518 45.4 Ref  
 1- < 5 years 232 49.4 1822 54.6 0.83(0.70,0.99) 0.03
Sex       
 Male 254 54.0 1802 54.0 Ref  
 Female 216 46.0 1538 46.0 1.00(0.84,1.18) 0.97
HIV status       
 Positive 24 5.1 152 4.6 Ref  
 Negative 240 51.1 1728 51.7 0.89(0.61,1.32) 0.57
 Unknown 206 43.8 1460 43.7 0.91(0.61,1.34) 0.63
Sign, symptoms and case definitions       
 Any fever 424 90.2 2984 89.3 1.09(0.82,1.45) 0.56
  Measured fever ≥38 °C 126 26.8 797 23.9 1.15(0.95,1.39) 0.16
  Reported fever 418 88.9 2957 88.5 1.04(0.79,1.36) 0.8
 Cough 453 96.4 3023 90.5 2.56(1.60,4.10) <0.01
 Difficulty breathing 291 61.9 1715 51.3 1.46(1.23,1.74) <0.01
 Chest pain 1 0.2 23 0.7 0.34(0.05,2.30) 0.27
 Night sweats 337 71.7 2224 66.6 1.24(1.02,1.49) 0.03
 Tachypneaa 288 61.3 1948 58.3 1.11(0.94,1.33) 0.22
 Hypoxiab 121 26.2 507 15.6 1.76(1.46,2.12) <0.01
 Wheeze 125 26.6 569 17.0 1.63(1.35,1.96) <0.01
 Stridor 36 7.7 142 4.3 1.69(1.25,2.30) <0.01
 Nasal flaring 146 31.1 739 22.1 1.49(1.24,1.78) <0.01
 Chest In-drawing 145 30.9 699 20.9 1.57(1.31,1.88) <0.01
 SARI 389 82.8 2579 77.2 1.36(1.09,1.71) 0.01
 ILI 112 23.8 678 20.3 1.20(0.98,1.46) 0.08
 IMCI Non-severe pneumonia 95 20.2 777 23.3 0.85(0.69,1.06) 0.14
 IMCI severe pneumonia 71 15.1 310 9.3 1.60(1.27,2.01) <0.01
 IMCI very severe pneumonia 236 50.2 1719 51.5 0.96(0.81,1.13) 0.61
 Cough or difficulty breathing plus hypoxia, chest in-drawing or wheeze 257 54.7 1316 39.4 1.72(1.15,2.03) <0.01
  1. aDefined as respiratory rate ≥60 breaths per minute in kids <2 months, ≥50 breaths per minute in kids 2–11 months, ≥40 breaths per minute for kids 1- < 5 years
  2. bDefined as oxygen saturation <90 % on room air. 14/3810 missing oxygen saturation