Perbandingan Penurunan Laju Filtrasi Glomerulus pada Populasi Non-Diabetes, Pre-diabetes, dan Diabetes Melitus Tipe-2, serta Faktor-Faktor yang Memengaruhinya = Comparison of Glomerular Filtration Rate Decline between Non-Diabetic, Pre-diabetic, and Diabetic Population and Its Affecting Factors