Table 5.
Agreement of questionnaires in the included studies.
| Reference | Questionnaires | Administered by | Main results |
|---|---|---|---|
| Andrews |
RCP3Q versus ACT/C-ACT |
ACT and RCP3Q: children C-ACT: children and parents |
5–11 years RCP3Q threshold score 0 (well controlled asthma); kappa = 0.39 RCP3Q threshold score ≥2 (poorly controlled asthma); kappa = 0.43 12–16 years RCP3Q threshold score 0 (well controlled asthma); kappa = 0.26 RCP3Q threshold score ≥2 (poorly controlled asthma); kappa = 0.33 |
| Rank | APGAR versus ACT/C-ACT |
ACT: children APGAR: children and parents |
5–11 years kappa = 0.716 12–18 years kappa = 0.625 |
| Juniper | ACQ versus RCP3Q |
ACQ, children and parents RCP3Q: clinician |
Cross-sectional PCCb = 0.52 Longitudinal PCC = 0.81 |
| Thomas | RCP3Q versus ACQ | Clinician |
Cross-sectional correlation coefficient; 0.41 (p = 0.134) Longitudinal correlation coefficient; 0.61 (p-value < 0.001) |
| Halterman | NAEPPa versus VAS |
VAS: parents NEAPP: parents |
VAS M-I (%) M-P M-S-P (%) 0–25 76.4 39.5 8.0 26–50 23.6 44.2 33.3 51–75 0 14.0 34.5 76–100 0 2.3 24.1 |
Interpretation of kappa values: <0: less than chance agreement; 0.01–0.20: slight agreement; 0.21–0.40: fair agreement; 0.41–0.60: moderate agreement; 0.61–0.80: substantial agreement; 0.81–0.99: almost perfect agreement50.
Interpretation of correlation coefficients: 0.00–0.30: negligible correlation; 0.30–0.50: low positive correlation; 0.50–0.70: moderate positive correlation; 0.70–0.90: high positive correlation; 0.90–1.00: very high positive correlation51.
M-I Mild, intermittent, M-P Mild, persistent, M-S-P Moderate-severe, persistent, ACD Asthma Control Diary (not validated in children), ACT Asthma Control Test, C-ACT Childhood Asthma Control Test, ACQ Asthma Control Questionnaire, APGAR Activities Persistent triGGers Asthma medications Response to therapy, NAEPP The National Asthma Education and Prevention Program, RCP3Q Royal College of Physicians three questions, VAS Visual Analog Scale.
aThis definition was used as the gold-standard assessment of severity.
bPearson’s correlation coefficient.