Abstrak: Abstrak

Tesis ini merupakan penelitian cross sectional yang bertujuan membuat model prediksi persen lemak tubuh untuk remaja laki-laki usia 12-19 tahun (n = 111), dengan melakukan studi validasi pengukuran antropometri dan model Prediksi (Slaughter, Deurenberg, Lee dan Chan) terhadap persen lemak tubuh BIA. Pada penelitian ini juga menjelaskan korelasi antara pengukuran antropometri (IMT WHO, skinfold thickness dan lingkar pinggang) serta model prediksi (Slaughter, Deurenberg, Lee dan Chan) dengan persen lemak tubuh BIA. Pengambilan sampel dilakukan dengan teknik stratified proportional. Penelitian ini dilakukan pada siswa MTs dan MA. Multiteknik Yayasan Asih Putera kelas 7-12.

Hasil penelitian menunjukkan IMT WHO memiliki korelasi paling kuat dengan persen lemak tubuh BIA (r = 0,804) diantara pengukuran antropometri yang digunakan. Model Prediksi IMT WHO memilki sensitivitas paling tinggi yaitu 94%, diikuti dengan model prediksi IMT WHO dan umur (94%) dan model prediksi Sitoayu. Seluruh variabel memiliki korelasi yang signifikan dengan persen lemak tubuh BIA (p < 0,0005). Hasil analisis multiregresi menunjukkan variabel yang dominan adalah IMT WHO, skinfold thickness, dan umur dengan model prediksi persen lemak tubuh baru (Sitoayu) = 23,28 + 1,56*IMT WHO + 0,13*ST - 0,62*U. Model prediksi ini memiliki AUC 0,937 dan nilai sensitivitas yaitu 84%.

The primary purpose of this cross-sectional study to develop percentage body fat prediction model for boys aged 12-19 years (n = 111), by conducting a validation study anthropometric measurements and predictions model of body fat percentage (Slaughter, Deurenberg, Lee and Chan) to percent body fat BIA. In this study also examined the correlation between anthropometric measurements (WHO BMI, skinfold thickness and waist circumference) and predictions model (Slaughter, Deurenberg, Lee and Chan) with percent body fat BIA with stratified proportional design. The research was carried out on students MTs and MA. Multiteknik Yayasan Asih Putera grade 7-12.

Bivariat analysis showed BMI WHO has the strongest correlation with percent body fat BIA (r = 0.804) between the anthropometric measurements were used. The Prediction model IMT WHO also has the best sensitivity (94%), the second is IMT WHO and Age (94%) and the third is Sitoayu. All variables have a significant correlation with percent body fat BIA (p < 0,0005). Multiregresi analysis results indicate that the dominant variable is the WHO BMI, skinfold thickness and age with the predictions model of percent body fat Sitoayu = 23,28 + 1.56 *BMI WHO + 0.13 * ST - 0.62 *Age. This prediction model has AUC 0,937 and the best sensitivity value of 84%.

Abstrak: Penelitian ini merupakan studi validasi dua metode recall untuk melihat apakahmetode pengisian kuesioner modifikasi DILQ lebih valid daripada wawancara padasiswa usia 9-11 tahun. Sebanyak 60 siswa kelas IV dan V SDIT Nurul Fikri Depokpada April 2016 diobservasi makan siang sekolah sebagai gold standard, kemudiandirecall pada siang esok hari dengan metode recall secara random. Hasil t-testmenunjukkan tidak ada perbedaan signifikan antara setiap tingkat validitas (Tingkatpenghilangan, Tingkat Intrusi, dan Total Kekeliruan) kedua metode. Namun, setiaptingkat validitas Metode Pengisian Kuesioner Modifikasi DILQ yaitu 20,24%,13,34%, dan 1,99 lebih rendah daripada Metode Wawancara yaitu 26,96%, 21,76%,dan 2,66.Kata Kunci:Modifikasi Day in the Life Questionnaire, Recall, Siswa, Validasi, Wawancara

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This study is a validation study of two recall methods which aims to determine iscompleting the Modified Day in the Life Questionnaire more valid than interviewin schoolchildren aged 9 to 11 years. Sixty students fourth- to fifth- grade in SDITNurul Fikri Depok was observed eating school lunch as gold standard, then theyreported school lunch recall on next afternoon with randomized recall method.Although t-test result indicated that every validity rate (Omission Rates, IntrusionRates, Total Inaccuracy) did not differ significantly for the two methods, meanevery Validation Rate were lower for completing the Modified Day in the LifeQuestionnaire method (20,24%, 13,34%, and 1,99) than for interview method(29,96%, 21,76%, and 2,66).Keywords:Modified Day in the Life Questionnaire, Recall, Schoolchildren, Validation,Interview.