[
  {
    "kind": "software",
    "name": "R 4.6.1",
    "source": "The R Project; the rocker/r-ver:4.6.1 image, pinned by digest in env/Dockerfile",
    "rrid": "RRID:SCR_001905",
    "details": "Every model and summary; the declared results came from the arm64 image."
  },
  {
    "kind": "software",
    "name": "survey 4.5 (R package)",
    "source": "CRAN, through the Posit Package Manager snapshot of 2026-10-01",
    "details": "svyglm with Taylor-linearized variance over NHANES's masked strata and PSUs, and degf for the design's degrees of freedom; pinned and checked in env/Dockerfile."
  },
  {
    "kind": "software",
    "name": "jsonlite 2.0.0 (R package)",
    "source": "CRAN, through the Posit Package Manager snapshot of 2026-10-01",
    "details": "Reads and writes the results files."
  },
  {
    "kind": "software",
    "name": "foreign (R package, with R 4.6.1)",
    "source": "The R Project",
    "details": "read.xport reads the NHANES SAS transport files."
  },
  {
    "kind": "other",
    "name": "NHANES public-use data files, 1999-2000 to August 2021-August 2023",
    "source": "National Center for Health Statistics, US Centers for Disease Control and Prevention (wwwn.cdc.gov/nchs/nhanes)",
    "details": "412 SAS transport files as CDC published them, carried compressed with xz in data/nhanes, each with its download URL, SHA-256, size, and download time in data/nhanes/sources.csv; code/lib/io.R checks each before reading it. De-identified public-use data, collected under NCHS Research Ethics Review Board protocols #98-12, #2005-06, #2011-17, #2018-01, and #2021-05."
  },
  {
    "kind": "other",
    "name": "Table A of S1 Data, Suchak et al. (2025)",
    "source": "PLOS Biology, doi:10.1371/journal.pbio.3003152, under CC BY 4.0",
    "details": "The sampling frame of 341 papers: its metadata columns only, in data/frame.csv (and plan/frame.csv)."
  }
]