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第46卷第3期
               ·390 ·                            南 京    医 科 大 学 学         报                        2026年3月


                                         表2 调查对象问卷得分影响因素的多元线性回归分析
                   Table 2 Multiple linear regression analysis of factors associated with questionnaire scores among survey subjects
                     Dimension     Measure       Sex a          Age        Educational attainment b  Major type c
                  Knowledge score     β         -0.048         0.055 *           -0.030            -0.053
                                    95%CI     -0.507,1.499  -0.136,0.469      -2.034,1.103      -0.249,0.067
                                      P         -0.333         0.281 *           -0.561            -0.259
                  Attitudes score     β         -0.069         0.002 *           -0.000            -0.063
                                    95%CI     -0.859,0.148  -0.149,0.154      -0.784,0.790      -0.133,0.026
                                      P         -0.167         0.975 *           -0.994            -0.186
                  Practices score     β         -0.035         0.102 *           -0.073            -0.016
                                    95%CI     -1.053,0.483   0.012,0.475      -2.103,0.298      -0.142,0.099
                                      P         -0.467         0.040 *           -0.141            -0.725
                  Overall score       β         -0.009         0.086 *           -0.055            -0.062
                                    95%CI     -1.720,1.430  -0.062,0.887      -3.829,1.099      -0.414,0.082
                                      P         -0.857         0.089 *           -0.278            -0.190
                     Dimension    Measure  Household income d  Living expenditure e  Smoking Status f  Family disease history g
                  Knowledge score   β         <-0.079 ***      -0.162 **       -0.054          -0.108 *
                                  95%CI     -0.596,0.087     -0.187,0.901   -0.809,2.876    -2.066,-0.150
                                    P         -<0.145 ***      -0.003 **       -0.272          -0.024 *
                  Attitudes score   β         -<0.022 ***      -0.083 **       -0.031          -0.059 *
                                  95%CI     -0.137,0.206     -0.040,0.319   -1.218,0.631     -0.178,0.783
                                    P         <-0.691 ***      -0.128 **       -0.534          -0.218 *
                  Practices score   β         -<0.283 ***      -0.019 **       -0.031          -0.051 *
                                  95%CI      0.461,0.984     -0.325,0.222   -1.878,0.943     -0.323,1.144
                                    P         <<0.001 ***      -0.714 **       -0.516          -0.273 *
                  Overall score     β         -<0.099 ***      -0.119 **       -0.009          -0.024 *
                                  95%CI     -0.034,1.040     -0.071,1.193   -2.622,3.167     -1.900,1.109
                                    P         <-0.067 ***      -0.028 **       -0.854          -0.607 *
                                              a
                                                                        b
                 Uniformly assign values to dummy variables. Sex(categorical):Male=1,Female=2. Educational attainment(ordinal):Junior college=1,Bache⁃
                                      c
              lor’s degree=2,Master’s or higher=3. Major type(categorical,defined by China’s Undergraduate Program Catalog of Regular Higher Education Institu⁃
              tions[2024]):Science=1,Engineering=2,Agriculture=3,Medicine=4,Literature=5,History=6,Philosophy=7,Economics=8,Management=9,Law=10,
                              d
              Education=11,Arts=12. Total household monthly income(ordinal):<5 000 CNY=1,5 000-10 000 CNY=2,10 000-15 000 CNY=3,15 000-20 000
                                                               e
              CNY=4,20 000-25 000 CNY=5,25 000-30 000 CNY=6,≥30 000 CNY=7. Monthly living expenditure(ordinal):<1 000 CNY=1,1 000-1 300 CNY=
                                                                                   f
              2,1 300-1 600 CNY=3,1 600-1 900 CNY=4,1 900-2 200 CNY=5,2 200-2 500 CNY=6,≥2 500 CNY=7. Smoking status(categorical):Never smok⁃
                         g
              er=1,Smoker=2. Family disease history(categorical):No known family history=1,Non⁃respiratory family disease history=2,Family history of respirato⁃
              ry diseases=3. Data are regression coefficients(β)from multiple linear regression models.
                                Monthly living                                  Monthly household
                                  expenses                                          income

                                      0.108 *                                         0.273 **
                                               0.270 **                0.148 **
                               Knowledge score           Attitude score           Behavior score
                                                                                     **
                                                                              *
                                 The values between paths represent the standardized path coefficients. P < 0.05,P < 0.01.
                                             图3   基于板块得分的修正后KAP路径模型
                                        Figure 3  Modified KAP path model based on block scores

              缺乏敏感性。                                            吸系统健康的态度非常积极,而PM2.5污染防治行为
                  值得注意的是,调查对象对于PM2.5污染影响呼                       率远低于相应态度认同率。这提示大学生虽然有
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