Perbedaan proporsi tingkat kebugaran kardiorespiratori berdasarkan indeks massa tubuh, status anemia, dan konsumsi suplemen pada karyawan pabrik PT. XYZ di 4 lokasi pabrik A, B, C, dan D tahun 2016: analisis data baseline = Cardiorespiratory fitness proportion differences based on body mass index, anemia status, and suplement consumption on factory workforce at 4 factory location A, B, C, and D of PT. XYZ year 2016: baseline data analysis