Characteristics of patient-reported outcome measures identified through systematic review
| Records using the PROM | PROM utilised | Description of the PROM tool items and domains | Target population for the PROM use | Year of PROM development | Recall period | Response scale description |
| Jacobs et al. [7] Whitley et al. [11] Johnston et al. [12] Chen et al. [16] Bongard et al. [15] | Canadian Acute Respiratory Illness and Flu Scale | 18 items covering the domains of respiratory symptoms, activity limitation and behavioural impact | Children with respiratory infection (validated in under 12s) | 1997 | Twice daily for first week, once on days 10 and 14 | Four-point Likert scale |
| Williams et al. [13] Lewis et al. [17] | Gilead Respiratory Syncytial Virus Caregiver Diary | 26 items covering the domains of respiratory symptoms and behavioural impact | <24 months of age with respiratory syncytial virus | 2018 | Twice daily | Five/six-point Likert scale |
| Bruyndonckx et al. [14] Bongard et al. [15] | EuroQol-Five Dimensions-Youth | Generic health status in terms of five items, including symptoms, activity limitations and behavioural impact | Intended for use in 8–15 year olds | NR | Once daily each week for 4 weeks | Three-level scale, death to full health |
| Santanello et al. [18] Sarrell et al. [20] Bisgaard et al. [21] | Bronchiolitis Caregiver Diary | Three items of respiratory symptoms | Infants aged 2–5 years with recurrent wheeze | 1999 | Once daily | Six-point Likert scale |
| Little et al. [19] | Adapted Measure Yourself Medical Outcome Profile | Nine items covering the domains of respiratory symptoms and activity limitation | NR | 2001 | Once daily | Six-point Likert scale |
| Tran et al. [23] | Bronchitis Severity Scale | Five items of respiratory symptoms | Patients with respiratory infection | 1996 | Once daily rated by a clinician with patient assistance | Five-point Likert scale |
| Wat et al. [22] | Asthma Symptom Diary | Nine items covering the domains of respiratory symptoms and activity limitation | Patients aged 9–11 years with asthma | 1995 | Twice daily | Four-point Likert scale |
| Kruizinga et al. [24] | Symptom questionnaire | Seven items covering the domains of respiratory symptoms, activity limitation and behavioural impact | Adult pneumonia patients aged 21–96 years | 2004 | Once daily | Differing per item; binary responses and three/four/five/six-point Likert scales |
| Heinonen et al. [25] Matilla et al. [27] | Symptom diary | Four items covering the domains of respiratory symptoms and activity limitation | Children between 1 and 3 years with influenza | NR | Twice daily first week, once daily thereafter | Four-point Likert scale |
| Barratt et al. [26] | Symptom diary | Eight items covering the domains of respiratory symptoms and activity limitation | Community-acquired pneumonia patients older than 6 months | NR | Once daily | Five-point Likert scale |
NR: not reported; PROM: patient-reported outcome measure.