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PTSD Dichotomous Outcomes Between Arms
This dataset provides results for between-arm comparisons of continuous measures. Included is information on score differences, p-value for statistical test, and study-reported effect sizes.
Where possible, the between-arm standardized effect size was calculated, using Hedges’ g. We calculated Hedges’ g based on the following (in order of preference): 1) adjusted mean difference; 2) follow-up scores; 3) unadjusted mean difference; 4) change scores. For the calculated effect size, information on the basis for calculation is included along with measures of variance. Negative values for Hedges’ g indicate a larger decrease (or lower follow-up score) in the first arm than in the second arm, while positive values indicate the reverse.
Each comparison is on a separate row, and pairwise as well as omnibus (multi-arm) comparisons are included. There are also separate rows for each measure, time point and analysis type.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| accrualPeriodicity | R/P1Y |
| bureauCode |
[
"029:15"
]
|
| contactPoint |
{
"fn": "National Center for PTSD",
"@type": "vcard:Contact",
"hasEmail": "mailto:ncptsd@va.gov"
}
|
| dataQuality |
true
|
| description | This dataset provides results for between-arm comparisons of continuous measures. Included is information on score differences, p-value for statistical test, and study-reported effect sizes. Where possible, the between-arm standardized effect size was calculated, using Hedges’ g. We calculated Hedges’ g based on the following (in order of preference): 1) adjusted mean difference; 2) follow-up scores; 3) unadjusted mean difference; 4) change scores. For the calculated effect size, information on the basis for calculation is included along with measures of variance. Negative values for Hedges’ g indicate a larger decrease (or lower follow-up score) in the first arm than in the second arm, while positive values indicate the reverse. Each comparison is on a separate row, and pairwise as well as omnibus (multi-arm) comparisons are included. There are also separate rows for each measure, time point and analysis type. |
| distribution |
[
{
"@type": "dcat:Distribution",
"mediaType": "application/json",
"describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.json",
"downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.json?accessType=DOWNLOAD",
"describedByType": "application/json"
},
{
"@type": "dcat:Distribution",
"mediaType": "application/rdf+xml",
"describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.rdf",
"downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.rdf?accessType=DOWNLOAD",
"describedByType": "application/rdf+xml"
},
{
"@type": "dcat:Distribution",
"mediaType": "application/xml",
"describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.xml",
"downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.xml?accessType=DOWNLOAD",
"describedByType": "application/xml"
},
{
"@type": "dcat:Distribution",
"mediaType": "text/csv",
"downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.csv?accessType=DOWNLOAD"
}
]
|
| identifier | https://www.data.va.gov/api/views/tz36-rieh |
| issued | 2023-07-07 |
| keyword |
[
"ptsd-repository"
]
|
| landingPage | https://www.data.va.gov/d/tz36-rieh |
| language |
[
"en-US"
]
|
| modified | 2025-09-16 |
| programCode |
[
"029:000"
]
|
| publisher |
{
"name": "National Center for PTSD",
"@type": "org:Organization"
}
|
| rights | All data is within the public domain and is currently available for download. |
| theme |
[
"PTSD-Repository"
]
|
| title | PTSD Dichotomous Outcomes Between Arms |
