RESUMEN
<p><b>OBJECTIVE</b>To evaluate the effects of health promotion on occupational health based on the changes in knowledge, attitude and practice (KAP) before and after intervention of people with occupational disease risk in private enterprises.</p><p><b>METHODS</b>202 people with occupational disease risk in private leather enterprises of Wenzhou were surveyed, who were rechecked with the same questionnaire after three months intervention.</p><p><b>RESULTS</b>The knowledge, attitude and practice scores (9.34 ± 2.57, 7.79 ± 2.58 and 7.24 ± 2.50, respectively) of post-intervention group were significantly increased more than those of pre-intervention (8.06 ± 2.71, 7.63 ± 2.67, 7.11 ± 2.60, respectively) (P < 0.01, P < 0.05). The net increases of knowledge, attitude and practice scores were significantly different with different length of service, educational level, registered residence and training experience (P < 0.05, P < 0.01).</p><p><b>CONCLUSIONS</b>Health promotion could increase knowledge, attitude and practice levels; The effect of intervention on people with short length of service, low educational level, coming from country and had not attended training is significant.</p>