{"id":526,"date":"2018-08-02T21:03:57","date_gmt":"2018-08-02T12:03:57","guid":{"rendered":"https:\/\/best-biostatistics.com\/toukei-er\/entry\/how-to-determine-sample-size-in-matched-case-control-study\/"},"modified":"2024-10-21T13:58:53","modified_gmt":"2024-10-21T04:58:53","slug":"how-to-determine-sample-size-in-matched-case-control-study","status":"publish","type":"post","link":"https:\/\/best-biostatistics.com\/toukei-er\/entry\/how-to-determine-sample-size-in-matched-case-control-study\/","title":{"rendered":"R \u3067\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306b\u5fc5\u8981\u306a\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u306e\u65b9\u6cd5<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u3068\u306f\">\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>\u5e74\u9f62\u3001\u6027\u5225\u3001\u306a\u3069\u3001\u75c5\u6c17\u306b\u6df1\u304f\u304b\u304b\u308f\u3063\u3066\u3044\u308b\u56e0\u5b50\u3060\u3051\u3069\u3001\u7814\u7a76\u5bfe\u8c61\u306b\u3057\u305f\u3044\u308f\u3051\u3067\u306a\u3044\u3068\u304d\u3001\u5f71\u97ff\u3092\u306a\u304f\u3057\u3066\u3057\u307e\u3044\u305f\u3044\u3002<\/p>\n\n\n\n<p>\u30b1\u30fc\u30b9\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u91cd\u8981\u306a\u56e0\u5b50\u3092\u5408\u308f\u305b\u3066\u3001\u30b1\u30fc\u30b9\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u9078\u3076\u3068\u3044\u3046\u30c7\u30b6\u30a4\u30f3\u304c\u3001\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u3060\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u30b9\u30af\u30ea\u30d7\u30c8\">\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u30b9\u30af\u30ea\u30d7\u30c8<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>p0: \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u66dd\u9732\u5272\u5408<\/li>\n\n\n\n<li>rr: \u60f3\u5b9a\u3055\u308c\u308b\u30aa\u30c3\u30ba\u6bd4<\/li>\n\n\n\n<li>ctrl: \u30b1\u30fc\u30b9\u306b\u5bfe\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u4eba\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u3068\u3059\u308b\u3068\u3001R \u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u66f8\u3051\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sample.size.matched.ccs <span class=\"synStatement\">&lt;-<\/span> <span class=\"synType\">function<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synSpecial\">,<\/span> rr<span class=\"synSpecial\">,<\/span> sig.level<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.05<\/span><span class=\"synSpecial\">,<\/span> power<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.8<\/span><span class=\"synSpecial\">,<\/span> ctrl<span class=\"synStatement\">=<\/span><span class=\"synConstant\">1<\/span><span class=\"synSpecial\">){<\/span>\nza <span class=\"synStatement\">&lt;-<\/span> <span class=\"synIdentifier\">qnorm<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">1<\/span><span class=\"synStatement\">-<\/span>sig.level<span class=\"synStatement\">\/<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">)<\/span>\nzb <span class=\"synStatement\">&lt;-<\/span> <span class=\"synIdentifier\">qnorm<\/span><span class=\"synSpecial\">(<\/span>power<span class=\"synSpecial\">)<\/span>\np <span class=\"synStatement\">&lt;-<\/span> rr<span class=\"synStatement\">\/<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">1<\/span><span class=\"synStatement\">+<\/span>rr<span class=\"synSpecial\">)<\/span>\nm <span class=\"synStatement\">&lt;-<\/span> <span class=\"synSpecial\">(<\/span>za<span class=\"synStatement\">\/<\/span><span class=\"synConstant\">2<\/span> <span class=\"synStatement\">+<\/span> zb<span class=\"synStatement\">*<\/span><span class=\"synIdentifier\">sqrt<\/span><span class=\"synSpecial\">(<\/span>p<span class=\"synStatement\">*<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">1<\/span><span class=\"synStatement\">-<\/span>p<span class=\"synSpecial\">)))<\/span><span class=\"synStatement\">**<\/span><span class=\"synConstant\">2<\/span><span class=\"synStatement\">\/<\/span><span class=\"synSpecial\">(<\/span>p<span class=\"synStatement\">-<\/span><span class=\"synConstant\">1<\/span><span class=\"synStatement\">\/<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">)<\/span><span class=\"synStatement\">**<\/span><span class=\"synConstant\">2<\/span>\np1 <span class=\"synStatement\">&lt;-<\/span> p0<span class=\"synStatement\">*<\/span>rr<span class=\"synStatement\">\/<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">1<\/span><span class=\"synStatement\">+<\/span>p0<span class=\"synStatement\">*<\/span><span class=\"synSpecial\">(<\/span>rr<span class=\"synStatement\">-<\/span><span class=\"synConstant\">1<\/span><span class=\"synSpecial\">))<\/span>\nq0 <span class=\"synStatement\">&lt;-<\/span> <span class=\"synConstant\">1<\/span><span class=\"synStatement\">-<\/span>p0\nq1 <span class=\"synStatement\">&lt;-<\/span> <span class=\"synConstant\">1<\/span><span class=\"synStatement\">-<\/span>p1\npe <span class=\"synStatement\">&lt;-<\/span> p0<span class=\"synStatement\">*<\/span>q1<span class=\"synStatement\">+<\/span>p1<span class=\"synStatement\">*<\/span>q0\npair <span class=\"synStatement\">&lt;-<\/span> <span class=\"synSpecial\">(<\/span>ctrl<span class=\"synStatement\">+<\/span><span class=\"synConstant\">1<\/span><span class=\"synSpecial\">)<\/span><span class=\"synStatement\">*<\/span><span class=\"synSpecial\">(<\/span>m<span class=\"synStatement\">\/<\/span>pe<span class=\"synSpecial\">)<\/span><span class=\"synStatement\">\/<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">2<\/span><span class=\"synStatement\">*<\/span>ctrl<span class=\"synSpecial\">)<\/span>\nMETHOD <span class=\"synStatement\">&lt;-<\/span> <span class=\"synConstant\">\"Matched Case Control Study Sample Size Calculation\"<\/span>\n<span class=\"synIdentifier\">structure<\/span><span class=\"synSpecial\">(<\/span><span class=\"synType\">list<\/span><span class=\"synSpecial\">(<\/span><span class=\"synConstant\">\"Matched pairs\"<\/span><span class=\"synStatement\">=<\/span><span class=\"synIdentifier\">ceiling<\/span><span class=\"synSpecial\">(<\/span>pair<span class=\"synSpecial\">),<\/span> <span class=\"synConstant\">\"Ctrl:Case ratio\"<\/span><span class=\"synStatement\">=<\/span>ctrl<span class=\"synSpecial\">,<\/span>\u3000<span class=\"synConstant\">\"Number of cases\"<\/span><span class=\"synStatement\">=<\/span><span class=\"synIdentifier\">ceiling<\/span><span class=\"synSpecial\">(<\/span>pair<span class=\"synSpecial\">),<\/span> <span class=\"synConstant\">\"Number of ctrls\"<\/span><span class=\"synStatement\">=<\/span><span class=\"synIdentifier\">ceiling<\/span><span class=\"synSpecial\">(<\/span>pair<span class=\"synSpecial\">)<\/span><span class=\"synStatement\">*<\/span>ctrl<span class=\"synSpecial\">,<\/span> <span class=\"synConstant\">\"Total number of sbjcts\"<\/span><span class=\"synStatement\">=<\/span><span class=\"synIdentifier\">ceiling<\/span><span class=\"synSpecial\">(<\/span>pair<span class=\"synSpecial\">)<\/span> <span class=\"synStatement\">+<\/span> <span class=\"synIdentifier\">ceiling<\/span><span class=\"synSpecial\">(<\/span>pair<span class=\"synSpecial\">)<\/span><span class=\"synStatement\">*<\/span>ctrl<span class=\"synSpecial\">,<\/span> <span class=\"synConstant\">\"Prop exposed in controls\"<\/span><span class=\"synStatement\">=<\/span>p0<span class=\"synSpecial\">,<\/span> <span class=\"synConstant\">\"Assumed Odds Ratio\"<\/span><span class=\"synStatement\">=<\/span>rr<span class=\"synSpecial\">,<\/span> sig.level<span class=\"synStatement\">=<\/span>sig.level<span class=\"synSpecial\">,<\/span> power<span class=\"synStatement\">=<\/span>power<span class=\"synSpecial\">,<\/span> method<span class=\"synStatement\">=<\/span>METHOD<span class=\"synSpecial\">),<\/span> class<span class=\"synStatement\">=<\/span><span class=\"synConstant\">\"power.htest\"<\/span><span class=\"synSpecial\">)<\/span>\n<span class=\"synSpecial\">}<\/span>\n<\/code><\/pre>\n\n\n\n<div id=\"biost-1308301169\" class=\"biost- biost-entity-placement\"><p style=\"text-align: center;\"><span style=\"font-size: 20px;\"><strong><a href=\"https:\/\/best-biostatistics.com\/kmhl\">\uff1e\uff1e\u3082\u3046\u7d71\u8a08\u3067\u60a9\u3080\u306e\u306f\u7d42\u308f\u308a\u306b\u3057\u307e\u305b\u3093\u304b\uff1f\u00a0<\/a><\/strong><\/span><\/p>\r\n<a href=\"https:\/\/best-biostatistics.com\/kmhl\"><img class=\"aligncenter wp-image-2794 size-full\" src=\"https:\/\/best-biostatistics.com\/wp\/wp-content\/uploads\/2023\/11\/bn_r_03.png\" alt=\"\" width=\"500\" height=\"327\" \/><\/a>\r\n<p style=\"text-align: center;\"><span style=\"color: #ff0000; font-size: 20px;\"><strong><span class=\"marker2\">\u21911\u4e07\u4eba\u4ee5\u4e0a\u306e\u533b\u7642\u5f93\u4e8b\u8005\u304c\u8cfc\u8aad\u4e2d<\/span><\/strong><\/span><\/p><\/div><h2 class=\"wp-block-heading\" id=\"\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u4f8b\">\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u4f8b<\/h2>\n\n\n\n<p>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u66dd\u9732\u5272\u5408\u304c0.3\u3001\u30aa\u30c3\u30ba\u6bd4\u304c2\u3001\u691c\u51fa\u529b\u304c90%\u3068\u3059\u308b\u3068\u3001<br>187\u30da\u30a2\u304c\u5fc5\u8981\u3068\u8a08\u7b97\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><span class=\"synStatement\">&gt;<\/span>  <span class=\"synIdentifier\">sample.size.matched.ccs<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.3<\/span><span class=\"synSpecial\">,<\/span> rr<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">,<\/span> power<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.9<\/span><span class=\"synSpecial\">)<\/span>\nMatched Case Control Study Sample Size Calculation\nMatched pairs <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">187<\/span>\nCtrl<span class=\"synSpecial\">:<\/span>Case ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">1<\/span>\nNumber of cases <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">187<\/span>\nNumber of ctrls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">187<\/span>\nTotal number of sbjcts <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">374<\/span>\nProp exposed <span class=\"synStatement\">in<\/span> controls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.3<\/span>\nAssumed Odds Ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nsig.level <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.05<\/span>\npower <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.9<\/span>\n<\/code><\/pre>\n\n\n\n<p>\u3082\u3057\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30922\u4f8b\u3068\u308b\u3068\u3059\u308b\u3068\u3001\u5fc5\u8981\u30da\u30a2\u6570\u306f140\u30da\u30a2\u306b\u6e1b\u308b\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u5168\u4f53\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u306f374\u304b\u3089420\u306b\u5897\u52a0\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u30b1\u30fc\u30b9\u304c\u3069\u3046\u3057\u3066\u3082\u96c6\u307e\u308a\u306b\u304f\u3044\u306a\u3089\u3057\u304b\u305f\u306a\u3044\u304c\u3001\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u5168\u4f53\u3092\u8003\u3048\u305f\u3089\u30011:1\u306e\u307b\u3046\u304c\u52b9\u7387\u304c\u3044\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><span class=\"synStatement\">&gt;<\/span> <span class=\"synIdentifier\">sample.size.matched.ccs<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.3<\/span><span class=\"synSpecial\">,<\/span> rr<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">,<\/span> power<span class=\"synStatement\">=<\/span><span class=\"synConstant\">.9<\/span><span class=\"synSpecial\">,<\/span> ctrl<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">)<\/span>\nMatched Case Control Study Sample Size Calculation\nMatched pairs <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">140<\/span>\nCtrl<span class=\"synSpecial\">:<\/span>Case ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nNumber of cases <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">140<\/span>\nNumber of ctrls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">280<\/span>\nTotal number of sbjcts <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">420<\/span>\nProp exposed <span class=\"synStatement\">in<\/span> controls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.3<\/span>\nAssumed Odds Ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nsig.level <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.05<\/span>\npower <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.9<\/span>\n<\/code><\/pre>\n\n\n\n<p>\u9055\u3046\u6761\u4ef6\u3067\u3001\u4f8b\u3048\u3070\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u66dd\u9732\u304c50%\u3001\u30aa\u30c3\u30ba\u6bd42\u3001\u691c\u51fa\u529b80%\u3001\u30b1\u30fc\u30b9\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u6bd4\u304c1:1\u3068\u3059\u308b\u3068\u3001137\u30da\u30a2\u3001274\u75c7\u4f8b\u96c6\u3081\u308c\u3070\u3044\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><span class=\"synStatement\">&gt;<\/span> <span class=\"synIdentifier\">sample.size.matched.ccs<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synStatement\">=<\/span><span class=\"synConstant\">0.5<\/span><span class=\"synSpecial\">,<\/span> rr<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">)<\/span>\nMatched Case Control Study Sample Size Calculation\nMatched pairs <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">137<\/span>\nCtrl<span class=\"synSpecial\">:<\/span>Case ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">1<\/span>\nNumber of cases <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">137<\/span>\nNumber of ctrls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">137<\/span>\nTotal number of sbjcts <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">274<\/span>\nProp exposed <span class=\"synStatement\">in<\/span> controls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.5<\/span>\nAssumed Odds Ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nsig.level <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.05<\/span>\npower <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.8<\/span>\n<\/code><\/pre>\n\n\n\n<p>\u30b1\u30fc\u30b9\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u6bd4\u30921:2\u3068\u3057\u3066\u3082\u3001\u30b1\u30fc\u30b9\u306f103\u4f8b\u5fc5\u8981\u3067\u305d\u308c\u307b\u3069\u7bc0\u7d04\u3067\u304d\u305a\u3001\u5168\u4f53\u306e\u5fc5\u8981\u5bfe\u8c61\u8005\u6570\u306f309\u4f8b\u306b\u5897\u52a0\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u5fc5\u8981\u30b1\u30fc\u30b9\u306f34\u4f8b\u5c11\u306a\u304f\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u5168\u4f53\u5fc5\u8981\u5bfe\u8c61\u8005\u6570\u306f35\u4f8b\u5897\u3048\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><span class=\"synStatement\">&gt;<\/span> <span class=\"synIdentifier\">sample.size.matched.ccs<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synStatement\">=<\/span><span class=\"synConstant\">0.5<\/span><span class=\"synSpecial\">,<\/span> rr<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">,<\/span> ctrl<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">)<\/span>\nMatched Case Control Study Sample Size Calculation\nMatched pairs <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">103<\/span>\nCtrl<span class=\"synSpecial\">:<\/span>Case ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nNumber of cases <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">103<\/span>\nNumber of ctrls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">206<\/span>\nTotal number of sbjcts <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">309<\/span>\nProp exposed <span class=\"synStatement\">in<\/span> controls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.5<\/span>\nAssumed Odds Ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nsig.level <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.05<\/span>\npower <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.8<\/span>\n<\/code><\/pre>\n\n\n\n<p>1:3\u306b\u3059\u308b\u3068\u3001\u30b1\u30fc\u30b9\u304c91\u4f8b\u5fc5\u8981\u3067\u3001\u5168\u4f53\u306e\u5fc5\u8981\u75c7\u4f8b\u6570\u306f\u3055\u3089\u306b364\u4f8b\u306b\u5897\u52a0\u3059\u308b\u3002<\/p>\n\n\n\n<p>1:1\u3068\u6bd4\u3079\u308b\u3068\u5fc5\u8981\u30b1\u30fc\u30b9\u306f46\u4f8b\u6e1b\u308b\u304c\u3001\u5168\u4f53\u306f90\u4f8b\u5897\u3048\u308b\u3002<\/p>\n\n\n\n<p>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u5bfe\u30b1\u30fc\u30b9\u306e\u6bd4\u3092\u4e0a\u3052\u3066\u3082\u3001\u3042\u307e\u308a\u5f97\u7b56\u3067\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><span class=\"synStatement\">&gt;<\/span> <span class=\"synIdentifier\">sample.size.matched.ccs<\/span><span class=\"synSpecial\">(<\/span>p0<span class=\"synStatement\">=<\/span><span class=\"synConstant\">0.5<\/span><span class=\"synSpecial\">,<\/span> rr<span class=\"synStatement\">=<\/span><span class=\"synConstant\">2<\/span><span class=\"synSpecial\">,<\/span> ctrl<span class=\"synStatement\">=<\/span><span class=\"synConstant\">3<\/span><span class=\"synSpecial\">)<\/span>\nMatched Case Control Study Sample Size Calculation\nMatched pairs <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">91<\/span>\nCtrl<span class=\"synSpecial\">:<\/span>Case ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">3<\/span>\nNumber of cases <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">91<\/span>\nNumber of ctrls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">273<\/span>\nTotal number of sbjcts <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">364<\/span>\nProp exposed <span class=\"synStatement\">in<\/span> controls <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.5<\/span>\nAssumed Odds Ratio <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">2<\/span>\nsig.level <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.05<\/span>\npower <span class=\"synStatement\">=<\/span> <span class=\"synConstant\">0.8<\/span>\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u3092\u30a8\u30af\u30bb\u30eb\u3067\">\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u3092\u30a8\u30af\u30bb\u30eb\u3067<\/h2>\n\n\n\n<p>\u30a8\u30af\u30bb\u30eb\u3067\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u307f\u305f\u3002<\/p>\n\n\n\n<p>\u3088\u304b\u3063\u305f\u3089\u3069\u3046\u305e\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/happyhappygk.base.ec\/items\/28077339\">\u3010\u75ab\u5b66\u3011\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76 \u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97 \u3010\u30a8\u30af\u30bb\u30eb\u3067\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u3011 | TKER SHOP<\/a><\/p>\n\n\n\n<p>\u4f7f\u3044\u65b9\u52d5\u753b\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u3082\u3088\u3051\u308c\u3070\u3002<\/p>\n\n\n\n<p><iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/m_GPdJio_-8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"allowfullscreen\" title=\"Matched case control study \u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97 \u30a8\u30af\u30bb\u30eb\u30d5\u30a1\u30a4\u30eb\u306e\u4f7f\u3044\u65b9\u3010\u30a8\u30af\u30bb\u30eb\u3067\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u3011\"><\/iframe><cite class=\"hatena-citation\"><a href=\"https:\/\/youtu.be\/m_GPdJio_-8\">youtu.be<\/a><\/cite><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306f\u3001\u7814\u7a76\u5bfe\u8c61\u306b\u306f\u3057\u306a\u3044\u304c\u3001\u3069\u3046\u3057\u3066\u3082\u5916\u305b\u306a\u3044\u8981\u56e0\u3092\u30de\u30c3\u30c1\u3057\u3066\u3001\u6700\u521d\u304b\u3089\u7121\u52b9\u5316\u3057\u3066\u3057\u307e\u3046\u70b9\u3067\u52b9\u7387\u304c\u3044\u3044\u3002<\/p>\n\n\n\n<p>\u5fc5\u8981\u30b1\u30fc\u30b9\u4f8b\u6570\u3092\u6291\u3048\u305f\u304f\u3066\u30011:n \u306e\u30c7\u30b6\u30a4\u30f3\u3092\u8003\u3048\u3066\u3082\u3001\u5fc5\u8981\u30b1\u30fc\u30b9\u4f8b\u6570\u304c\u6e1b\u3063\u305f\u5206\u3092\u4e0a\u56de\u308b\u307b\u3069\u4f59\u5206\u306b\u5fc5\u8981\u306b\u306a\u308a\u3001\u3080\u3057\u308d\u5168\u4f53\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u304c\u5927\u304d\u304f\u306a\u308a\u3001\u52b9\u7387\u306f\u60aa\u304f\u306a\u308b\u3002<\/p>\n\n\n\n<p>1:1\u30c7\u30b6\u30a4\u30f3\u3067\u3001\u9811\u5f35\u3063\u3066\u30b1\u30fc\u30b9\u3092\u96c6\u3081\u308b\u306e\u304c\u3001\u4e00\u756a\u52b9\u7387\u304c\u3044\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u53c2\u8003\u66f8\u7c4d\">\u53c2\u8003\u66f8\u7c4d<\/h2>\n\n\n\n<p>Schlesselman JJ, Case-Control Studies, Oxford University Press, Oxford NY, 1982<br>6.6 Sample size and power for pair-matched studies pp.160-162<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a class=\"hatena-asin-detail-image-link\" href=\"https:\/\/www.amazon.co.jp\/dp\/019502933X?tag=ttyotani-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31ke7TkEuIL._SL500_.jpg\" alt=\"Case Control Studies: Design, Conduct, Analysis (Monographs in Epidemiology and Biostatistics)\" title=\"Case Control Studies: Design, Conduct, Analysis (Monographs in Epidemiology and Biostatistics)\"\/><\/a><\/figure>\n\n\n\n<div class=\"hatena-asin-detail\"><\/div>\n\n\n\n<div class=\"hatena-asin-detail-info\">\n<p class=\"hatena-asin-detail-title\"><a href=\"https:\/\/www.amazon.co.jp\/dp\/019502933X?tag=ttyotani-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" target=\"_blank\" rel=\"noopener\">Case Control Studies: Design, Conduct, Analysis (Monographs in Epidemiology and Biostatistics)<\/a><\/p>\n<ul class=\"hatena-asin-detail-meta\">\n<li><span class=\"hatena-asin-detail-label\">\u4f5c\u8005:<\/span><a href=\"https:\/\/d.hatena.ne.jp\/keyword\/Schlesselman%2C%20James%20J.\" class=\"keyword\">Schlesselman, James J.<\/a><\/li>\n<li>Oxford University Press, USA<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.amazon.co.jp\/dp\/019502933X?tag=ttyotani-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" class=\"asin-detail-buy\" target=\"_blank\" rel=\"noopener\">Amazon<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30de\u30c3\u30c1\u30c9\u30b1\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7814\u7a76\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u306e\u65b9\u6cd5<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,30,106,16],"tags":[],"class_list":["post-526","post","type-post","status-publish","format-standard","hentry","category-r","category-30","category-106","category-16"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/comments?post=526"}],"version-history":[{"count":3,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/526\/revisions"}],"predecessor-version":[{"id":3154,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/526\/revisions\/3154"}],"wp:attachment":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/media?parent=526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/categories?post=526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/tags?post=526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}