TY - JOUR T1 - THE EFFECT OF EDUCATIONAL INTERVENTION WITH THE HEALTH BELIEF MODEL ON KNOWLEDGE, PERCEPTIONS AND SELF-EFFICACY AMONG ADOLESCENT OF HIGH SCHOOL GIRLS ABOUT OSTEOPOROSIS, TEHRAN, IRAN 2010-2011 TT - بررسی تأثیر مداخله آموزشی با مدل اعتقاد سلامت بر آگاهی، ادراکات و خودکارآمدی نوجوانان دختر مقطع دبیرستان منطقه یک شهر تهران در زمینه بیماری استئوپروز در سال 1389 JF - URMIAMJ JO - URMIAMJ VL - 24 IS - 3 UR - http://umj.umsu.ac.ir/article-1-1656-en.html Y1 - 2013 SP - 163 EP - 169 KW - Educational intervention KW - Health belief model KW - Perceptions KW - Self-efficacy KW - Osteoporosis N2 -  Background & Aim: Osteoporosis is considered as a silent disease. Having knowledge and correct health beliefs can be effective on preventive behaviors in osteoporosis disease. This study aimed to determine the impact of educational intervention on knowledge, perceptions and self-efficacy among adolescent girls. Materials & Methods: this quasi-experimental study was performed on 45 adolescent girls from one town of Tehran. The data collection instrument was a validated and reliable questionnaire in 3 sections: demographic health belief model component and self-efficacy that was used before & after the education. The educational intervention based on health belief model with direct and indirect methods was conducted. The data was analyzed by SPSS 15 software and we used paired t-test for statistical analysis of the data. Results: The findings of this study and comparing the means showed a significant difference between the mean scores of students, Knowledge before and after the educational intervention (p M3 ER -