预防医学/附表31-2:两样本率比较时所需样本含量(双侧)
医学电子书 >> 《预防医学》 >> 实验性研究——临床试验 >> 附表31-2:两样本率比较时所需样本含量(双侧) |
预防医学 |
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上行:α=0.05,1-β=0.80
中行:α=0.05,1-β=0.90
下行:α=0.05,1-β=0.95
较小率(%) | δ=两组率之差(%) | |||||||||||||
5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | |
5 | 420 | 130 | 69 | 44 | 31 | 24 | 20 | 16 | 14 | 12 | 10 | 9 | 9 | 7 |
570 | 175 | 93 | 59 | 42 | 32 | 25 | 21 | 18 | 15 | 13 | 11 | 10 | 9 | |
960 | 300 | 155 | 10 | 71 | 54 | 42 | 34 | 28 | 24 | 21 | 19 | 16 | 14 | |
10 | 680 | 195 | 96 | 59 | 41 | 30 | 23 | 19 | 16 | 13 | 11 | 10 | 9 | 7 |
910 | 260 | 130 | 79 | 54 | 40 | 31 | 24 | 21 | 18 | 15 | 13 | 11 | 10 | |
1550 | 440 | 220 | 135 | 92 | 68 | 52 | 41 | 34 | 28 | 23 | 21 | 18 | 15 | |
15 | 910 | 250 | 120 | 71 | 48 | 34 | 26 | 21 | 17 | 14 | 12 | 10 | 9 | 8 |
1220 | 330 | 160 | 95 | 64 | 46 | 35 | 27 | 22 | 19 | 16 | 13 | 11 | 10 | |
2060 | 560 | 270 | 160 | 110 | 78 | 59 | 47 | 37 | 31 | 25 | 21 | 19 | 16 | |
20 | 1090 | 290 | 135 | 80 | 53 | 38 | 28 | 22 | 18 | 15 | 13 | 10 | 9 | 7 |
1460 | 390 | 185 | 105 | 71 | 51 | 38 | 29 | 23 | 20 | 16 | 14 | 11 | 10 | |
2470 | 660 | 310 | 180 | 120 | 86 | 64 | 50 | 40 | 32 | 26 | 21 | 19 | 15 | |
25 | 1250 | 330 | 150 | 88 | 57 | 40 | 30 | 23 | 19 | 15 | 13 | 10 | 9 | — |
1680 | 440 | 200 | 115 | 77 | 54 | 40 | 31 | 24 | 20 | 16 | 13 | 11 | — | |
2840 | 740 | 340 | 200 | 130 | 92 | 68 | 52 | 41 | 32 | 26 | 21 | 18 | — | |
30 | 1380 | 360 | 160 | 93 | 60 | 42 | 31 | 23 | 19 | 15 | 12 | 10 | — | — |
1840 | 480 | 220 | 125 | 80 | 56 | 41 | 31 | 24 | 20 | 16 | 13 | — | — | |
3120 | 810 | 370 | 210 | 135 | 95 | 69 | 53 | 41 | 32 | 25 | 21 | — | — | |
35 | 1470 | 380 | 170 | 96 | 61 | 42 | 31 | 23 | 18 | 14 | 11 | — | — | — |
1970 | 500 | 225 | 130 | 82 | 57 | 41 | 31 | 23 | 19 | 15 | — | — | — | |
3340 | 850 | 380 | 215 | 140 | 96 | 69 | 52 | 40 | 31 | 23 | — | — | — | |
40 | 1530 | 390 | 175 | 97 | 61 | 42 | 30 | 22 | 17 | 13 | — | — | — | — |
2050 | 520 | 230 | 130 | 82 | 56 | 40 | 29 | 22 | 18 | — | — | — | — | |
3480 | 880 | 390 | 220 | 140 | 95 | 68 | 50 | 37 | 28 | — | — | — | — | |
45 | 1560 | 390 | 175 | 96 | 60 | 40 | 28 | 21 | 16 | — | — | — | — | — |
2100 | 520 | 230 | 130 | 80 | 54 | 38 | 27 | 21 | — | — | — | — | — | |
3550 | 890 | 390 | 215 | 135 | 92 | 64 | 47 | 34 | — | — | — | — | — | |
50 | 1560 | 390 | 170 | 93 | 57 | 38 | 26 | 19 | — | — | — | — | — | — |
2100 | 520 | 225 | 215 | 77 | 51 | 35 | 24 | — | — | — | — | — | — | |
3550 | 880 | 380 | 210 | 130 | 86 | 59 | 41 | — | — | — | — | — | — |
附表31-1:两样本率比较时所需样本含量(单侧) | 附表31-3:配对比较(t检验)时所需样本含量 |
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