Extraction Data
The double data extraction Cochrane asks for — in minutes per PDF
200 hours of spreadsheet work; and single extraction lets sign errors and SD-that-is-SE slip through.
You give
The study PDF (one per run, within the page limit of the chosen depth) and the list of outcomes, one per line.
You get
One workbook with 9 sheets: Reconciled, Arm A, Arm B, Conflicts, Validation, Completeness (why each required cell is blank), Units (each study's unit per outcome), Studies and Legend, with source, confidence and quote for every value. Numbers come out as printed, unconverted; converting is the Harmonisation tool's job.
How it works
# Extraction $ scopetools run dual-extraction Model-assisted, with deterministic checks. Two arms: reading A starts from the text, reading B from tables and figures. Values that agree are accepted; disagreements are left blank on purpose and listed in a Conflicts sheet for you to settle on the page. Executable checks flag SD that looks like SE, events greater than n, unit mismatches and conversions (Wan, Hozo) with the formula used.
Two independent arms (A reads the text first, B the tables first); what agrees is accepted, what diverges goes to a Conflicts sheet for you to settle on the page. Executable checks flag SD≈SE, events > n, unit mismatches and Wan/Hozo conversions with the formula used. Seven sheets plus a raw .json that can become Supplementary Data. Only extracted articles are charged.
What it costs
Standard tier: from 15 credits per article, 20 with the arbiter (the default); 8 PDFs ≈ 160 credits (about US$13). Light from 5 · Deep from 35. One PDF per run, and the exact price shows before it runs (long PDFs cost more).
You see the price before it runs — a failed run gives the credits back.
Credits are shared across every MetaScope tool — buy once, spend anywhere.
Limits
Scanned PDFs without a text layer cannot be read. Values marked low confidence must be checked on the page.
Frequently asked questions
- Does it read scanned PDFs?
- No; a text layer is required (scans trigger a warning).
- What happens when the two readings disagree?
- The cell is left blank on purpose and listed in Conflicts for you to settle on the page.
- How many PDFs per run?
- One PDF per run, so every article gets its own price and its own result; a run that fails is refunded.
Extracted? Run the Data check for meta-analysis before pooling — 3 credits.