{
  "_id": "6a1f2692b401979e734220a8",
  "Package": "chest",
  "Type": "Package",
  "Title": "Change-in-Estimate Approach to Assess Confounding Effects",
  "Version": "0.3.7",
  "Authors@R": "person(\"Zhiqiang\", \"Wang\", email = \"menzies.uq@gmail.com\", role = c(\"aut\", \"cre\"))",
  "Description": "Applies the change-in-effect estimate method to assess\nconfounding effects in medical and epidemiological research\n(Greenland & Pearce (2016)\n<doi:10.1146/annurev-publhealth-031914-122559> ). It starts\nwith a crude model including only the outcome and exposure\nvariables. At each of the subsequent steps, one variable which\ncreates the largest change among the remaining variables is\nselected. This process is repeated until all variables have\nbeen entered into the model (Wang Z. Stata Journal 2007; 7,\nNumber 2, pp. 183–196). Currently, the 'chest' package has\nfunctions for linear regression, logistic regression, negative\nbinomial regression, Cox proportional hazards model and\nconditional logistic regression.",
  "License": "GPL-2",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "RoxygenNote": "7.2.3",
  "VignetteBuilder": "knitr",
  "Language": "en-US",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-16 05:50:25 UTC",
    "User": "root"
  },
  "Author": "Zhiqiang Wang [aut, cre]",
  "Maintainer": "Zhiqiang Wang <menzies.uq@gmail.com>",
  "Config/pak/sysreqs": "libicu-dev",
  "Repository": "https://uqwang.r-universe.dev",
  "Date/Publication": "2023-03-23 08:50:13 UTC",
  "RemoteUrl": "https://github.com/cran/chest",
  "RemoteRef": "HEAD",
  "RemoteSha": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
  "MD5sum": "c053629cb681271c157bec863179e081",
  "_user": "uqwang",
  "_type": "src",
  "_file": "chest_0.3.7.tar.gz",
  "_fileid": "b316c06a21d3225ee34c6ee7e0d5295ff2173bc9d489961debad7717960d07b9",
  "_filesize": 417000,
  "_sha256": "b316c06a21d3225ee34c6ee7e0d5295ff2173bc9d489961debad7717960d07b9",
  "_created": "2026-05-16T05:50:25.000Z",
  "_published": "2026-06-02T18:53:06.430Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 79147995152,
      "time": 168,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7030971895"
    },
    {
      "job": 79147995114,
      "time": 178,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7030972788"
    },
    {
      "job": 79147994586,
      "time": 126,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7030967758"
    },
    {
      "job": 79147995133,
      "time": 144,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7030969500"
    },
    {
      "job": 79147993916,
      "time": 209,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7030955131"
    },
    {
      "job": 79147994034,
      "time": 114,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7366996342"
    },
    {
      "job": 79147995056,
      "time": 341,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7030987779"
    },
    {
      "job": 79147995173,
      "time": 155,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7030970593"
    },
    {
      "job": 79147995334,
      "time": 118,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7030967385"
    }
  ],
  "_buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/cran/chest",
  "_commit": {
    "id": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
    "author": "Zhiqiang Wang <menzies.uq@gmail.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 0.3.7\n",
    "time": 1679561413
  },
  "_maintainer": {
    "name": "Zhiqiang Wang",
    "email": "menzies.uq@gmail.com",
    "login": "uqwang",
    "uuid": 129814805
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 2.20",
      "role": "Depends"
    },
    {
      "package": "broom",
      "role": "Imports"
    },
    {
      "package": "ggplot2",
      "role": "Imports"
    },
    {
      "package": "survival",
      "role": "Imports"
    },
    {
      "package": "grid",
      "role": "Imports"
    },
    {
      "package": "forestplot",
      "role": "Imports"
    },
    {
      "package": "MASS",
      "role": "Imports"
    },
    {
      "package": "tibble",
      "role": "Imports"
    },
    {
      "package": "dplyr",
      "role": "Imports"
    },
    {
      "package": "spelling",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    }
  ],
  "_owner": "cran",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_stars": 1,
  "_contributors": [
    {
      "user": "uqwang",
      "count": 2,
      "uuid": 129814805
    }
  ],
  "_userbio": {
    "uuid": 129814805,
    "type": "user",
    "name": "uqwang"
  },
  "_downloads": {
    "count": 283,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/chest"
  },
  "_searchresults": 12,
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/chest.html",
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_realowner": "uqwang",
  "_cranurl": false,
  "_releases": [
    {
      "version": "0.2.0",
      "date": "2019-12-16"
    },
    {
      "version": "0.3.1",
      "date": "2020-01-29"
    },
    {
      "version": "0.3.2",
      "date": "2020-07-09"
    },
    {
      "version": "0.3.3",
      "date": "2020-07-12"
    },
    {
      "version": "0.3.4",
      "date": "2020-09-30"
    },
    {
      "version": "0.3.5",
      "date": "2021-01-19"
    },
    {
      "version": "0.3.6",
      "date": "2022-03-01"
    },
    {
      "version": "0.3.7",
      "date": "2023-03-23"
    }
  ],
  "_exports": [
    "chest_clogit",
    "chest_cox",
    "chest_forest",
    "chest_glm",
    "chest_lm",
    "chest_nb",
    "chest_plot"
  ],
  "_datasets": [
    {
      "name": "diab_df",
      "title": "Example data: Health outcomes of 2372 adults with and without diabetes",
      "object": "diab_df",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Endpoint",
        "mid",
        "Diabetes",
        "Age",
        "Sex",
        "BMI",
        "Married",
        "Smoke",
        "CVD",
        "Cancer",
        "Education",
        "Income",
        "t0",
        "t1"
      ],
      "rows": 2372,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "chest",
      "title": "Change-in-Estimate Approach to Assess Confounding Effects",
      "topics": [
        "chest"
      ]
    },
    {
      "page": "chest_clogit",
      "title": "Assessing confounding effects using conditional logistic regression models",
      "topics": [
        "chest_clogit"
      ]
    },
    {
      "page": "chest_cox",
      "title": "Assessing confounding effects using Cox Proportional Hazards regression models",
      "topics": [
        "chest_cox"
      ]
    },
    {
      "page": "chest_forest",
      "title": "Plot effect estimates and change-in-estimate values (forestplot type)",
      "topics": [
        "chest_forest"
      ]
    },
    {
      "page": "chest_glm",
      "title": "Assessing confounding effects using Generalized Linear regression models",
      "topics": [
        "chest_glm"
      ]
    },
    {
      "page": "chest_lm",
      "title": "Assessing confounding effects using Linear regression models",
      "topics": [
        "chest_lm"
      ]
    },
    {
      "page": "chest_nb",
      "title": "Assessing confounding effects using Negative Binomial regression models",
      "topics": [
        "chest_nb"
      ]
    },
    {
      "page": "chest_plot",
      "title": "Plot effect estimate and change-in-estimate values (ggplot type)",
      "topics": [
        "chest_plot"
      ]
    },
    {
      "page": "diab_df",
      "title": "Example data: Health outcomes of 2372 adults with and without diabetes",
      "topics": [
        "diab_df"
      ]
    }
  ],
  "_readme": "https://github.com/cran/chest/raw/HEAD/README.md",
  "_rundeps": [
    "abind",
    "backports",
    "broom",
    "checkmate",
    "cli",
    "cpp11",
    "dplyr",
    "farver",
    "forestplot",
    "generics",
    "ggplot2",
    "glue",
    "gtable",
    "isoband",
    "labeling",
    "lattice",
    "lifecycle",
    "magrittr",
    "MASS",
    "Matrix",
    "pillar",
    "pkgconfig",
    "purrr",
    "R6",
    "RColorBrewer",
    "rlang",
    "S7",
    "scales",
    "stringi",
    "stringr",
    "survival",
    "tibble",
    "tidyr",
    "tidyselect",
    "utf8",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_vignettes": [
    {
      "source": "chest-vignette.Rmd",
      "filename": "chest-vignette.html",
      "title": "Change-in-estimate Approach: Assessing Confounding Effects",
      "author": "Zhiqiang Wang",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Overview",
        "Installation",
        "Getting Started",
        "Data: diabetes and mortality",
        "chest_glm: Logistic regression using (generalized linear models, glm).",
        "chest_cox: Using Cox Proportional Hazards Models: 'coxph' of 'survival' package",
        "chest_clogit: Conditional logistic regression: 'clogit' of 'survival' package",
        "chest_lm: linear regression",
        "Notes:"
      ],
      "created": "2019-12-16 14:00:02",
      "modified": "2023-03-23 08:50:13",
      "commits": 3
    }
  ],
  "_score": 2.778151250383644,
  "_indexed": true,
  "_nocasepkg": "chest",
  "_universes": [
    "uqwang"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.3.7",
      "date": "2026-05-16T05:52:41.000Z",
      "distro": "noble",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "6b97e6bdd8e507ecbca80089fe82c6c5d376ee41d445fd72522a7c57d015ac16",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "0.3.7",
      "date": "2026-05-16T05:52:48.000Z",
      "distro": "noble",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "716e04a9e1646f89161561de45429aeae93fc6792792e839bd60a3a6041b8e29",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.3.7",
      "date": "2026-05-16T05:52:12.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "2d9f277eebeb9e9f6ecb85d5489362a33a3cb924f81384b96511915be5d10542",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "0.3.7",
      "date": "2026-05-16T05:52:22.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "4f792214909ff53d02596f73e5bc00aa7862effcc362cd5a324f6be399ece38f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.3.7",
      "date": "2026-05-16T05:55:15.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "b8bff5423706859a9058a39ce6de7352c98115e4e214dfd987f65596ab7ed6c2",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.3.7",
      "date": "2026-05-16T05:52:19.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "85199dffa9ebcbf4cf2c5c3016cfd70a674c4975c974362334234cdff85aa39f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "0.3.7",
      "date": "2026-05-16T05:51:46.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "01dc3049044c5f2627c108c3016959c4b1f92f26b0deef1c5b938ac2ffa95de2",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.3.7",
      "date": "2026-06-02T18:52:49.000Z",
      "commit": "b1e61c2fcad713fcbfd6571eefa1f4095cbe1ee6",
      "fileid": "c1a3546da5f4fcd01e9fcb6924036aba93b86fa7fa0c96abc7eafd5cd0c704b7",
      "status": "success",
      "buildurl": "https://github.com/r-universe/uqwang/actions/runs/25954224043"
    }
  ]
}