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Table 1 Modified respiratory distress assessment instrument (m-RDAI)

From: Nasal mucosal microRNA expression in children with respiratory syncytial virus infection

Points 0 1 2 3 4
Wheeze      
Expiration None End-Expiratory 1/2 3/4 Whole expiration
Inspiration None Partly Whole inspiration   
Location None ≤2 of 4 lung fields ≥3 of 4 lung fields   
Retractions      
Supraclavicular No Mild Moderate Significant  
Intercostal No Mild Moderate Significant  
Subcostal No Mild Moderate Significant  
Respiratory Rate Upper limit of normal respiratory rate Points
Age < 1 month 50/ min 1 point for each increment of 5 breaths/minute above normal, max. 8 points
Age 1 – 5 months 40/ min
Age 6 – 11 months 30/ min
  1. Note: Maximum score for wheeze - 8 points; for retractions – 9 points; for respiratory rate – 8 points. Thus RR, retractions and wheeze are equally weighted. Maximum m-RDAI score is 25 points. Adapted from Lowell et al. [11]. Example - a 3-month old child with a respiratory rate of 62 receives 5 points for Respiratory rate (62 – 40 = 22; 22/5 = 4.4; round up to 5).