Page 83 - 《南京医科大学学报（自然科学版）》2026年第3期

第46卷第3期 沈浩然，黄奕欣，何子洁，等. 南京市大学生对细颗粒物污染影响呼吸系统健康的知信行调查［J］.
2026年3月 南京医科大学学报（自然科学版），2026，46（3）：384-395 ·391 ·

Demographic
characteristics

0.111 *
Age
0.100 *
0.108 *
Practice
-0.197 *** *
0.103
0.269 ***
0.105 *
0.158 ***
0.101 * ***
0.157 Pay attention to PM 2.5
Monthly household
0.233 *** 0.165 *** pollution
income
Attitude
Support for PM2.5
0.117 *
Knowledge control
**
-0.156
Family
history
0.277 *** Support for PM2.5
protection
Wear a mask
Regular physical
examination
Cognition of
0.216 ***
PM2.5
0.097 *
0.141 **
Cognition of The degree of
0.101 *
respiratory health 0.168 *** attention paid to PM 2.5 Reduce outdoor
0.126 ** activities
Monthly living
0.105 * *
expenses 0.112
The standards and -0.143 **
0.105 *
current situation of PM 2.5
Educational **
-0.138
background
Have regular physical
examinations
Respiratory health
protection -0.145 **
-0.125 **
0.177 ***
0.144 **
0.162 ***
0.110 * Improve the living
environment
-0.106 *
The impact and -0.122 **
-0.145 **
hazards of PM2.5
Gender
0.211 ***
Professional 0.141 **
type
0.116 **
0.108 *
0.203 ***
Practice green
0.103 *
travel
0.123 **

*
**
The values between paths represent the standardized path coefficients. P < 0.05，P < 0.01 and *** P < 0.001.
图4 基于条目得分的KAP路径模型
Figure 4 KAP path model based on item scores