Validitas ukuran lingkar pinggang, rasio lingkar pinggang-pinggul, dan rasio lingkar pinggang-tinggi badan dalam memprediksi sindrom metabolik pada pegawai instansi pemerintah di area Pelabuhan Tanjung Priok = Validity of waist circumference waist to hip ratio and waist to height ratio to predict metabolic syndrome among employees in port of Tanjung Priok Jakarta / Rahma Listyandini