The Validity and Reliability Analysis of Turkish Version of General Practice Physical Activity Questionnaire

Objective: Turkish adaptation of the General Practice Physical Activity Questionnaire (GPPAQ) used in UK and investigation of validity and reliability. Methods: Adapting GPPAQ has done with these steps; translation, back translation, comparison to original, obtaining expert opinion, pre-test, final version. Turkish GPPAQ was applied to volunteers between the ages of 16-74 in Family Physician Policlinic between July-September 2015. A demographic information form was filled and International Physical Activity Questionnaire-Short Form (IPAQ-SF) was applied. Data were evaluated with SPSS-22.0. Cronbach alpha and factor analysis were used for validity and reliability tests. Sensitivity and specificity of Turkish GPPAQ were calculated by comparison to IPAQ-SF. Results: Of 409 individuals participated the study, 241 (58.9%) were female and 168 (41.1%) were male; mean age was 35.1 +/- 14.7. With GPPAQ, 86 participants (21.0%) were active, 81 (19.8%) were moderately active, 72 (17.6%) were moderately inactive and 170 (41.6%) were inactive. With IPAQ-SF, 87 (21.3%) were active, 162 (39.6%) were minimal active and 160 (39.1%) were inactive. The alpha coefficient was calculated to be 0.74; Kaiser-Meyer-Olkin (KMO) value was 0.72 and Bartlett's X2=1526.42, p=0.001; the explained variance rate was 0.38. The sensitivity and specificity of GPPAQ according to IPAQ-SF were 86% and 47% respectively. Conclusion: Validity of Turkish GPPAQ is ensured and reliability is sufficient. When compared to IPAQ-SF, the detection rate of inactive and active individuals is 86% and 47% respectively. Turkish GPPAQ is a practical method that can be used quickly and safely in determining the level of physical activity in primary care.