TABLE 3.
Concordance analyses between researchers and MDS clinician raters using different time points (intraclass correlation coefficients and kappa values)a
| 0–14 days between assessments (n = 53) | 0–30 days between assessments (n = 111) | Full samples (n = 150) | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|||||||
| ICC/Kappa | p-Value | Maximum Kappa | ICC/Kappa | p-Value | Maximum Kappa | ICC/Kappa | p-Value | Maximum Kappa | |
| PHQ-9 total score | 0.36 | .003 | – | 0.22 | .007 | – | 0.22 | .004 | – |
|
| |||||||||
| PHQ-9 score ≥ 10 | 0.24 | .082 | 0.85 | 0.02 | .827 | 0.67 | 30.02 | .793 | 0.67 |
|
| |||||||||
| Suicidal ideation | 0.37 | .006 | 0.48 | 0.14 | .042 | 0.31 | 0.10 | .060 | 0.22 |
ICC, intraclass correlation coefficients; MDS, Minimum Data Set; PHQ-9, 9-item Patient Health Questionnaire.
The mean is 22.74 (SD = 17.55) days between assessments; median = 21 days; min = 0; max = 83. Excluding eight outliers, the mean is 20.06 (SD = 13.53); max = 57 days.
a
No statistics were computed for the 15–30 days between assessments subgroup because the MDS reported Suicidal Ideation variable was constant.