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A B
Brunnstrom（lower limb） Brunnstrom（lower limb） High
Brunnstrom（upper limb） Brunnstrom（upper limb）
D⁃dimer D⁃dimer
ALB ALB
Age Age
RDW⁃CV RDW⁃CV
HDL⁃C HDL⁃C
PCT PCT
INR INR Feature value
HGB HGB
RBC RBC
Use⁃of⁃antiplatelet Use⁃of⁃antiplatelet
Alcohol Alcohol
Past⁃stroke Past⁃stroke
Srtoke⁃type Srtoke⁃type
Smoke Smoke
Low
0.0 0.01 0.02 0.03 0.04 0.05 0.06 -0.05 0 0.05 0.10 0.15 0.20 0.25
mean（|SHAP value|）（average impact on model output magnitude） SHAP value（impact on model output）
A：Each row represents a feature，with higher SHAP value indicating greater contribution. B：The SHAP value of each feature，where each point rep⁃
resents a sample. The greater the dispersion of points，the more significant the impact of the feature. Colors represent feature values（red for high，blue
for low）.
图3 RF模型SHAP特征分析
Figure 3 SHAP feature analysis of RF model

A （limb） 0.5 B 0.6
PDP for feature of Brunnstrom 0.3 PDP for feature of （arm） Brunnstrom 0.5
0.4
0.4
0.3
0.2
0.2
0.1
0 0.1 0
1 2 3 4 5 6 1 2 3 4 5 6
Brunnstrom_lower limb（stage） Brunnstrom_upper limb（stage）
C -0.05 D Age -0.05
0.00
0.00
PDP for feature of D⁃dimer -0.10 PDP for feature of -0.10
-0.15
-0.15
-0.20
-0.20
-0.25
-0.25
-0.30
-0.30
0 2 4 6 8 10 12 14 -0.35 20 30 40 50 60
D⁃dimer（mg/L） Age（years）
E
ALB
PDP for feature of 0.20
0.15
0.10
0.05
0
25.0 27.5 30.0 32.5 35.0 37.5 40.0 42.5 45.0
ALB（g/L）
The x⁃axis represents the actual value of the feature，while the y⁃axis represents the corresponding SHAP value；SHAP value >0 indicates an in⁃
crease in the ability to care for oneself in ADL. A：Partial dependence plot of SHAP features for Brunnstrom stage（lower limb）. The unique grio points
are six. B：Partial dependence plot of SHAP features for Brunnstrom stage（upper limb）. The unique grio points are six. C：Partial dependence plot of
SHAP features for D⁃dimer. The unique grio points are ten. D：Partial dependence plot of SHAP features for age. E：Partial dependence plot of SHAP fea⁃
tures for ALB. The unique grio points are ten.
图4 RF模型SHAP特征部分依赖图
Figure 4 SHAP feature partial dependence diagrams of RF model

示近2 mg/L以内的血清D⁃二聚体水平对ADL的影响 即需要警惕，及时改变卧床状态，适当增加活动量，这
更有预测意义。当D⁃二聚体在此范围内进行性增加 对提高ADL能力具有重要意义。ALB是临床上评价