|
Category-specific and overall intra-rater reliability coefficients |
|||||
| Percentage agreement |
Kappa |
||||
|
|
|
||||
| Category (number of items) |
Category % |
% range across items |
Category κ |
95% CI |
κ range across items |
|
|
|||||
| 1. Physical assessment (8) |
94 |
91–98 |
0.84 |
(0.81–0.87) |
0.72–0.90 |
| 2. Asthma control (7) |
92 |
85–95 |
0.83 |
(0.80–0.86) |
0.60–0.88 |
| 3. Spirometry (6) |
95 |
91–97 |
0.84 |
(0.80–0.86) |
0.78–0.94 |
| 4. Asthma education (8) |
91 |
78–95 |
0.72 |
(0.68–0.76) |
0.55–0.82 |
| 5. Asthma referrals (3) |
94 |
92–93 |
0.59 |
(0.46–0.71) |
0.44–0.65 |
| 6. Medications (1) |
94 |
94 |
0.51 |
(0.27–0.75) |
0.51 |
| Overall |
93 |
0.81* |
(0.80–0.83) |
||
|
* Chi-square test statistic for homogeneity = 47, df = 5, p < 0.0001 Abbreviations: κ kappa statistic, CI confidence interval | |||||
To et al. BMC Medical Research Methodology 2008 8:29 doi:10.1186/1471-2288-8-29 |
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