Empirical Analysis of the Three-Dimensional Structure of Clinical Reasoning Ability and Construction of Targeted Python Case Library from the Perspective of Cluster Analysis
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摘要:
目的 明确临床医学实习生临床思维能力的内在结构与群体特征,构建针对性培养工具,为临床思维教育改革提供依据。 方法 采用多中心分层抽样,选取6所医院321名临床医学实习生,通过自编《临床思维能力评估问卷》调查,结合相关分析、因子分析解析能力结构,K-means聚类识别群体特征,据此设计Python案例库并通过随机对照试验验证效果。 结果 临床思维能力为“诊断关联力、方案决策力、知识应用力”三维结构,累计方差解释率84.21%,多群体验证拟合良好(χ2/df = 2.31~2.45,RMSEA = 0.065~0.069);聚类分为高(33.33%)、中(42.68%)、低(23.99%)三类能力群体,各维度得分差异有统计学意义(P < 0.01)。案例库干预后,干预组各群体核心短板维度提升幅度显著高于对照组(高能力型诊断关联力F = 32.67,中能力型方案决策力F = 48.32,低能力型知识应用力F = 41.56,均P < 0.01)。 结论 临床思维能力三维结构与群体特征为精准培养提供靶向,Python案例库可推动临床思维培养向“数据驱动”转型。 Abstract:Objective To clarify the internal structure and population characteristics of clinical reasoning ability among clinical medical interns, construct targeted training tools, and provide evidence for clinical reasoning education reform. Methods A multi-center stratified sampling method was adopted to select 321 clinical medical interns from 6 hospitals. A self-designed "Clinical Thinking Ability Assessment Questionnaire" was used for the survey. Correlation analysis and factor analysis were conducted to explore the ability structure, while K-means clustering was applied to identify group characteristics. Based on these findings, a Python case library was designed and its effectiveness was verified through a randomized controlled trial. Results Clinical thinking ability demonstrated a three-dimensional structure comprising "diagnostic association, decision-making for treatment planning, and knowledge application, " with a cumulative variance explanation rate of 84.21%. Multi-population validation showed good model fit (χ2/df = 2.31~2.45, RMSEA = 0.065~0.069). Clustering analysis identified three ability groups: high (33.33%), moderate (42.68%), and low (23.99%), with statistically significant differences across all dimensions (P < 0.01). After intervention with the case library, the improvement of core shortcoming dimensions in the intervention group was significantly higher than that in the control group (diagnostic relevance of high-ability group: F = 32.67; scheme decision-making ability of medium-ability group: F = 48.32; knowledge application ability of low-ability group: F = 41.56, all P < 0.01). Conclusion The three-dimensional structure and population characteristics of clinical thinking ability provide targeted guidance for precision training. The Python case library facilitates the transition of clinical thinking cultivation toward "data-driven" approaches. -
表 1 诊断关联力维度各指标Pearson相关分析
Table 1. Pearson correlation analysis of each index in the dimension of diagnostic relevance
平均值 标准差 归纳主诉信息 症状联系疾病 复杂病例鉴别 归纳主诉信息 3.88 0.95 1 症状联系疾病 3.51 0.89 0.702** 1 复杂病例鉴别 3.18 1.02 0.715** 0.764** 1 * P < 0.05 ;** P < 0.01。 表 2 方案决策力维度各指标Pearson相关分析
Table 2. Pearson correlation analysis of each index in the dimension of scheme decision-making ability
平均值 标准差 制定治疗方案 逻辑推理自信 定位关键问题 制定治疗方案 3.20 1.02 1 逻辑推理自信 3.35 1.07 0.783** 1 定位关键问题 3.47 1.04 0.736** 0.771** 1 * P < 0.05; ** P < 0.01。 表 3 知识应用力维度各指标Pearson相关分析
Table 3. Pearson correlation analysis of each index in the dimension of knowledge application ability
平均值 标准差 查阅文献咨询 分析检查结果 查阅文献咨询 4.08 1.05 1 分析检查结果 3.36 0.98 0.532** 1 * P < 0.05 ;** P < 0.01。 表 4 临思维能力因子分析方差解释率
Table 4. Factor analysis variance explanation rate of clinical thinking ability
因子编号 特征根 旋转前方差解释率% 旋转前累积% 旋转前方差解释率% 旋转前累积% 1 5.52 69.01 69.01 37.89 37.89 2 0.72 9.03 78.04 28.92 66.81 3 0.51 6.04 84.44 17.40 84.21 4 0.40 5.02 89.46 − − 5 0.29 3.65 93.11 − − 6 0.23 2.91 96.02 − − 7 0.19 2.42 98.44 − − 8 0.13 1.56 100.00 − − 表 5 临床思维能力因子分析旋转后载荷系数
Table 5. Rotated loading coefficients of factor analysis for clinical thinking ability
名称 因子载荷系数 共同度(公因子方差) 因子1 因子2 因子3 归纳主诉信息 0.285 0.878 0.195 0.879 症状联系疾病 0.448 0.663 0.412 0.796 复杂病例鉴别 0.668 0.621 0.205 0.859 制定治疗方案 0.789 0.398 0.257 0.832 逻辑推理自信 0.791 0.478 0.105 0.852 定位关键问题 0.682 0.535 0.185 0.773 查阅文献咨询 0.218 0.248 0.918 0.943 分析检查结果 0.753 0.113 0.481 0.801 注:表格中加粗表示载荷系数绝对值大于0.4;旋转方法:最大方差法Varimax。 表 6 三类能力群体各维度得分方差分析对比($ \bar x \pm s $,分)
Table 6. Comparison of variance analysis of dimension scores among three ability groups ($ \bar x \pm s $,Score)
高能力型(n=107(33.33%)) 中能力型(n=137(42.68%)) 低能力型 (n=77(23.99%)) F P 知识应用力 0.49 ± 0.59 0.38 ± 0.68 −1.36 ± 0.66 215.68 0.000** 诊断关联力 −0.30 ± 0.96 0.54 ± 0.81 −0.51 ± 0.90 43.87 0.000** 方案决策力 0.97 ± 0.66 −0.59 ± 0.62 −0.26 ± 0.93 147.82 0.000** 分层分析(三级医院n = 232) 知识应用力 0.50 ± 0.58 0.39 ± 0.67 −1.35 ± 0.65 152.36 0.000** 诊断关联力 −0.29 ± 0.95 0.55 ± 0.80 −0.50 ± 0.89 30.62 0.000** 方案决策力 0.98 ± 0.65 −0.58 ± 0.61 −0.25 ± 0.92 104.57 0.000** 分层分析(二级医院n = 89) 知识应用力 0.46 ± 0.61 0.35 ± 0.70 −1.38 ± 0.68 63.29 0.000** 诊断关联力 −0.32 ± 0.98 0.52 ± 0.83 −0.53 ± 0.92 13.25 0.000** 方案决策力 0.94 ± 0.68 −0.61 ± 0.64 −0.28 ± 0.95 43.25 0.000** *P < 0.05 ;**P < 0.01。 表 7 三类能力群体8项指标得分差异比较(分,$ \bar x \pm s $)
Table 7. Comparison of score differences of 8 indicators among three groups (Score,$ \bar x \pm s $)
高能力型(n = 107) 中能力型(n = 137) 低能力型(n = 77) F P 归纳主诉信息 3.96 ± 0.91 4.22 ± 0.71 3.10 ± 0.99 42.05 0.000** 症状联系疾病 3.91 ± 0.88 3.67 ± 0.66 2.62 ± 0.70 69.83 0.000** 复杂病例鉴别 3.69 ± 1.06 3.19 ± 0.87 2.38 ± 0.75 44.78 0.000** 制定治疗方案 4.02 ± 0.78 2.98 ± 0.83 2.42 ± 0.86 90.87 0.000** 逻辑推理自信 4.05 ± 0.99 3.15 ± 0.80 2.70 ± 1.10 49.98 0.000** 定位关键问题 4.02 ± 1.03 3.45 ± 0.77 2.70 ± 1.06 43.46 0.000** 查阅文献咨询 4.66 ± 0.53 4.45 ± 0.68 2.54 ± 0.64 291.35 0.000** 分析检查结果 4.27 ± 0.68 3.13 ± 0.66 2.46 ± 0.81 154.02 0.000** * P < 0.05 ;** P < 0.01。 表 8 干预前两组临床思维能力基线比较($ \bar x \pm s $)
Table 8. Baseline comparison of clinical thinking ability between two groups before intervention ($ \bar x \pm s $)
能力群体 组别 例数 诊断关联力 方案决策力 知识应用力 问卷总分 案例考核得分 高能力型 干预组 30 3.95 ± 0.90 4.03 ± 0.77 4.65 ± 0.52 12.63 ± 1.85 82.42 ± 7.51 对照组 30 3.97 ± 0.92 4.01 ± 0.79 4.63 ± 0.54 12.61 ± 1.88 82.36 ± 7.55 t 0.08 0.09 0.15 0.04 0.03 P 0.936 0.928 0.881 0.968 0.976 中能力型 干预组 30 3.66 ± 0.65 2.97 ± 0.82 4.44 ± 0.67 11.07 ± 1.74 68.38 ± 8.15 对照组 30 3.68 ± 0.67 2.99 ± 0.84 4.46 ± 0.69 11.13 ± 1.76 68.45 ± 8.12 t 0.12 0.09 0.11 0.14 0.03 P 0.905 0.928 0.913 0.888 0.976 低能力型 干预组 30 2.61 ± 0.70 2.41 ± 0.85 2.53 ± 0.63 7.55 ± 1.88 52.62 ± 9.30 对照组 30 2.63 ± 0.72 2.43 ± 0.87 2.55 ± 0.65 7.61 ± 1.90 52.71 ± 9.33 t 0.10 0.08 0.12 0.13 0.04 P 0.920 0.936 0.905 0.896 0.968 表 9 干预前后两组临床思维能力变化比较($ \bar x \pm s $)
Table 9. Comparison of changes in clinical thinking ability between two groups before and after intervention ($ \bar x \pm s $)
能力群体 组别 时间点 诊断关联力 方案决策力 知识应用力 问卷总分 案例考核得分 高能力型 干预组 T0 3.95 ± 0.90 4.03 ± 0.77 4.65 ± 0.52 12.63 ± 1.85 82.42 ± 7.51 T1 4.52 ± 0.86** 4.28 ± 0.75 4.82 ± 0.50 13.62 ± 1.78** 89.65 ± 6.82** 对照组 T0 3.97 ± 0.92 4.01 ± 0.79 4.63 ± 0.54 12.61 ± 1.88 82.36 ± 7.55 T1 4.12 ± 0.91 4.15 ± 0.77 4.71 ± 0.52 12.98 ± 1.82 84.25 ± 7.48 组间T1差异(F/P) 32.67/0.002 2.81/0.356 2.53/0.281 30.15/0.003 45.82/0.001 中能力型 干预组 T0 3.66 ± 0.65 2.97 ± 0.82 4.44 ± 0.67 11.07 ± 1.74 68.38 ± 8.15 T1 3.98 ± 0.63** 3.78 ± 0.76** 4.68 ± 0.65 12.56 ± 1.62** 76.82 ± 7.65** 对照组 T0 3.68 ± 0.67 2.99 ± 0.84 4.46 ± 0.69 11.13 ± 1.76 68.45 ± 8.12 T1 3.75 ± 0.66 3.22 ± 0.80 4.55 ± 0.67 11.52 ± 1.70 71.36 ± 7.88 组间T1差异(F/P) 8.64/0.032 48.32/0.001 2.47/0.295 42.76/0.001 38.95/0.002 低能力型 干预组 T0 2.61 ± 0.70 2.41 ± 0.85 2.53 ± 0.63 7.55 ± 1.88 52.62 ± 9.30 T1 3.25 ± 0.68** 2.98 ± 0.81** 3.38 ± 0.61** 8.61 ± 1.75** 63.45 ± 8.72** 对照组 T0 2.63 ± 0.72 2.43 ± 0.87 2.55 ± 0.65 7.61 ± 1.90 52.71 ± 9.33 T1 2.82 ± 0.71 2.65 ± 0.83 2.86 ± 0.64 8.33 ± 1.82 56.82 ± 9.05 组间T1差异(F/P ) 35.29/0.001 6.78/0.028 41.56/0.001 5.83/0.035 49.21/0.001 与同组T0比较,** P < 0.01;组间T1差异为独立样本t检验结果。 -
[1] 王颖, 李海潮. 临床医学教育中临床思维能力的培养与评估[J]. 中国高等医学教育, 2021, 41(3): 7-8. [2] 李梦琪, 张艳, 王建国. 临床医学实习生临床思维同质化问题及破解路径[J]. 中华医学教育探索杂志, 2023, 22(5): 659-663. [3] 张雪, 刘清泉, 吴疆. 临床医学专业学生临床思维能力评价指标体系的构建与验证[J]. 医学教育杂志, 2022, 42(8): 705-709. [4] 赵文静, 刘敏, 陈立明. 传统案例教学在临床思维培养中的局限性及优化策略[J]. 医学教育管理, 2024, 10(2): 215-219. [5] Chen A, Wang L, Li H. Application of artificial intelligence in clinical reasoning training for medical students[J]. Journal of Medical Education and Curricular Development, 2023, 10: 1-8. [6] Zhang Y, Li J, Wang H. Python-based intelligent case bank for clinical reasoning training: A pilot study[J]. BMC Medical Education, 2023, 23(1): 45-53. doi: 10.1186/s12909-023-04016-7 [7] Schuwirth LW, Van der Vleuten CP, Driessen EW. Update on the framework for assessing clinical reasoning: Expanding core dimensions and indicators[J]. Medical Education, 2022, 56(8): 789-802. [8] 宋一帆, 韩庆烽, 肖卫忠, 等. 基于德尔菲法的全科住院医师临床思维能力评价体系构建研究[J]. 中国全科医学, 2025, 28(1): 77-82. [9] 王璐瑶, 陈明华, 李红梅. 基于Delphi法与因子分析的临床思维评估指标体系构建[J]. 中国卫生事业管理, 2023, 40(8): 622-625. [10] 刘佳, 张伟, 王丽娟. 临床思维案例考核的评分者信度验证与标准制定[J]. 医学教研究与实践, 2024, 32(3): 389-393. [11] Liu M, Chen X, Zhang W. K-means clustering for stratifying clinical thinking ability among medical interns[J]. Medical Education Online, 2022, 27(1): 2089456. [12] 刘畅, 王浩, 陈晨. 聚类分析在医学教育学习者能力分层与精准教学中的应用[J]. 医学教育管理, 2023, 9(3): 356-361. [13] 陈雨桐, 马晓峰, 刘畅. Scikit-learn与Flask在医学教育案例库中的集成应用[J]. 信息技术与信息化, 2024(6): 187-190. [14] Schuwirth L W, van der Vleuten C P. Assessment of clinical reasoning: A review of methods[J]. Medical Education, 2013, 47(10): 952-975. [15] Wang L, Zhao J, Huang Y. Validation of a three-dimensional clinical reasoning model: Recognition, decision-making, and application[J]. Academic Medicine, 2024, 99(2): 312-318. [16] 周琳, 吴敏, 张雪峰. 基于聚类分析的临床医学实习生分层培养模式研究[J]. 中国高等医学教育, 2024(4): 92-93. [17] Humbert A J, Johnson M T, Miech E, et al. Assessment of clinical reasoning: A Script Concordance test designed for pre-clinical medical students[J]. Med Teach, 2011, 33(6): 472-477. doi: 10.3109/0142159X.2010.531157 [18] Chen L, Yang S, Li Q. Effectiveness of a targeted case library for clinical reasoning training in pediatrics[J]. Pediatric Education, 2023, 49(5): 489-496. [19] 李佳琪, 王浩, 张艳. 智能化案例库与传统案例教学的效果对比研究[J]. 医学教育管理, 2024, 10(4): 498-502. [20] 闻德亮, 李鸿鹤, 宋鑫智. 基于科学引文数据库的医学教育研究前沿分析(2024)[J]. 中华医学教育杂志, 2024, 44(10): 726-732. [21] Eva K W. What every teacher needs to know about clinical reasoning[J]. Med Educ, 2005, 39(1): 98-106. doi: 10.1111/j.1365-2929.2004.01972.x [22] Zhao H, Wang Q, Zhang L. Eye-tracking technology for assessing clinical reasoning: A systematic review[J]. Journal of Medical Education, 2022, 56(4): 356-364. -
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