Table 3 An example of the calculation of CVR, modified kappa, and face validity for two categories (administrative class and corrosive poisoning subclass)
From: Developing the minimum data set of the corrosive ingestion registry system in Iran
Data items | The number giving a rating of 3 or 4 to the relevancy of the item | CVRa | pcb | Kc | Face validityd | Interpretation |
|---|---|---|---|---|---|---|
Age | 75 | 1 | 0/009× \({10}^{-48}\)  ~ 0 | 1 | 3.5 | Excellent |
Gender | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Admission date | 70 | 0.94 |  ~ 0 | 0.94 | 3.5 | Excellent |
Residence (housing) | 68 | 0.906 |  ~ 0 | 0.906 | 3.18 | Excellent |
Income | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Date of birth | 72 | 0.96 |  ~ 0 | 0.96 | 3.5 | Excellent |
Marital status | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Ethnicity | 70 | 0.933 |  ~ 0 | 0.94 | 2.09 | Excellent |
Height | 69 | 0.92 |  ~ 0 | 0.92 | 3.5 | Excellent |
Weight | 74 | 0.986 |  ~ 0 | 0.986 | 3.01 | Excellent |
Religion | 72 | 0.96 |  ~ 0 | 0.96 | 3.18 | Excellent |
Education level | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Occupation | 70 | 0.933 |  ~ 0 | 0.933 | 3.04 | Excellent |
Type of referring to the hospital | 69 | 0.92 |  ~ 0 | 0.92 | 3.1 | Excellent |
Dealing with toxin | 75 | 1 |  ~ 0 | 1 | 3.3 | Excellent |
Duration of hospitalization | 74 | 0.986 |  ~ 0 | 0.986 | 3.1 | Excellent |
Admission time | 75 | 1 |  ~ 0 | 1 | 2.89 | Excellent |
Patients’ status after discharge | 67 | 0.893 |  ~ 0 | 0.893 | 3.01 | Excellent |
Date of follow-up | 75 | 1 |  ~ 0 | 1 | 2.94 | Excellent |
Discharge outcome | 75 | 1 |  ~ 0 | 1 | 3.04 | Excellent |
Corrosive poisoning subclass | ||||||
Ingested substance | 73 | 0.973 |  ~ 0 | 0.973 | 3.3 | Excellent |
Volume of ingestion | 75 | 1 |  ~ 0 | 1 | 3.2 | Excellent |
Physical characteristics of substances | 70 | 0.933 |  ~ 0 | 0.933 | 3.4 | Excellent |
Amount of substance | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Concentration of substance | 72 | 0.96 |  ~ 0 | 0.96 | 3.5 | Excellent |
Duration time between swallowing until arrival at the hospital | 75 | 1 |  ~ 0 | 1 | 3.5 | Excellent |
Measures taken before and during transportation to a medical center | 65 | 0.866 |  ~ 0 | 0.866 | 3.5 | Excellent |