研究文章

模拟研究比较不同统计方法预测生物标志物的鉴定

表1

估计错误概率与精确 置信区间(在括号中)为所有研究方法场景1和2。

n= 250 n= 500 n= 1000
低岑。 高岑。 低岑。 高岑。 低岑。 高岑。

场景1 平均分割 4.7% 5.3% 4.9% 4.4% 5.0% 6.4%
(3.5 - -6.2%) (4.0 - -6.9%) (3.6 - -6.4%) (3.2 - -5.9%) (3.7 - -6.5%) (5.0 - -8.1%)
四分位数分裂 6.3% 5.3% 4.2% 5.1% 3.5% 5.7%
(4.9 - -8.0%) (4.0 - -6.9%) (3.0 - -5.6%) (3.8 - -6.7%) (2.4 - -4.8%) (4.3 - -7.3%)
最优分割 43.6% 39.9% 45.8% 40.9% 45.5% 46.6%
(40.5 - -46.7%) (36.8 - -43.0%) (42.7 - -48.9%) (37.8 - -44.0%) (42.4 - -48.6%) (43.5 - -49.7%)
STEPP 4.8% 5.9% 5.1% 4.2% 4.0% 6.3%
(3.6 - -6.3%) (4.5 - -7.5%) (3.8 - -6.7%) (3.0 - -5.6%) (2.9 - -5.4%) (4.9 - -8.0%)
考克斯(线性int)。 4.9% 5.2% 4.8% 4.4% 4.8% 5.8%
(3.6 - -6.4%) (3.9 - -6.8%) (3.6 - -6.3%) (3.2 - -5.9%) (3.6 - -6.3%) (4.4 - -7.4%)
MFPI (FP1-flex3) 10.1% 10.6% 10.4% 12.0% 10.3% 13.5%
(8.3 - -12.1%) (8.8 - -12.7%) (8.6 - -12.5%) (10.1 - -14.2%) (8.5 - -12.4%) (11.4 - -15.8%)
MFPI (FP2-flex1) 4.9% 5.6% 4.9% 4.7% 6.0% 7.0%
(3.6 - -6.4%) (4.3 - -7.2%) (3.6 - -6.4%) (3.5 - -6.2%) (4.6 - -7.7%) (5.5 - -8.8%)
LPLB 4.6% 4.5% 4.2% 4.4% 3.9% 5.8%
(3.4 - -6.1%) (3.3 - -6.0%) (3.0 - -5.6%) (3.2 - -5.9%) (2.8 - -5.3%) (4.4 - -7.4%)

场景2 平均分割 4.2% 6.0% 5.7% 4.2% 5.7% 4.3%
(3.0 - -5.6%) (4.6 - -7.7%) (4.3 - -7.3%) (3.0 - -5.6%) (4.3 - -7.3%) (3.1 - -5.7%)
四分位数分裂 5.3% 6.7% 5.1% 4.5% 5.0% 5.4%
(4.0 - -6.9%) (5.2 - -8.4%) (3.8 - -6.7%) (3.3 - -6.0%) (3.7 - -6.5%) (4.1 - -7.0%)
最优分割 50.8% 42.8% 53.9% 45.9% 52.0% 47.4%
(47.7 - -53.9%) (39.7 - -45.9%) (50.8 - -57.0%) (42.8 - -49.0%) (48.9 - -55.1%) (44.3 - -50.5%)
STEPP 5.4% 8.2% 6.8% 6.8% 7.8% 6.9%
(4.1 - -7.0%) (6.6 - -10.1%) (5.3 - -8.5%) (5.3 - -8.5%) (6.2 - -9.6%) (5.4 - -8.7%)
考克斯(线性int)。 4.5% 8.2% 4.8% 6.4% 5.0% 5.2%
(3.3 - -6.0%) (6.6 - -10.1%) (3.6 - -6.3%) (5.0 - -8.1%) (3.7 - -6.5%) (3.9 - -6.8%)
MFPI (FP1-flex3) 8.1% 12.6% 9.1% 10.3% 8.1% 7.8%
(6.5 - -10.0%) (10.6 - -14.8%) (7.4 - -11.1%) (8.5 - -12.4%) (6.5 - -10.0%) (6.2 - -9.6%)
MFPI (FP2-flex1) 5.5% 6.5% 6.5% 5.6% 4.1% 5.9%
(4.2 - -7.1%) (5.1 - -8.2%) (5.1 - -8.2%) (4.3 - -7.2%) (3.0 - -5.5%) (4.5 - -7.5%)
LPLB 6.2% 5.8% 7.3% 4.8% 7.7% 6.1%
(4.8 - -7.9%) (4.4 - -7.4%) (5.8 - -9.1%) (3.6 - -6.3%) (6.1 - -9.5%) (4.7 - -7.8%)