Kekurangan gizi merupakan salah satu bentuk malnutrisi yang disebabkan oleh asupan makanan yang tidak adekuat dan penyakit infeksi. Penelitian ini bertujuan untuk mengetahui faktor dominan yang berhubungan dengan kekurangan gizi (wasting) pada anak usia 6-23 bulan di Kecamatan Pagedangan Kabupaten Tangerang. Desain penelitian yang digunakan adalah cross-sectional. Kekurangan gizi (wasting) diukur menggunakan indikator berat badan menurut panjang badan (BB/PB). Pengumpulan data dilakukan dengan pengukuran antropometri (berat badan dan panjang badan) dan wawancara kuesioner dengan responden. Hasil penelitian menunjukkan bahwa 17,0% anak usia 6-23 bulan di Kecamatan Pagedangan Kabupaten Tangerang mengalami kekurangan gizi (wasting). Dari 153 anak usia 6-23 bulan, 44,4% mengalami infeksi saluran pernapasan akut dan/atau diare dalam 2 minggu terakhir, 47,7% tidak ASI eksklusif, 43,1% tidak mencapai minimum dietary diversity, 52,9% tidak mencapai minimum acceptable diet, 32,0% mengalami defisit asupan energi, dan 52,9% defisit asupan protein. Hasil analisis chi-square menunjukkan bahwa penyakit infeksi (p-value =0,032) dan asupan energi (p-value =0,017) berhubungan signifikan dengan kekurangan gizi (wasting). Uji regresi logistik ganda menunjukkan bahwa asupan energi merupakan faktor dominan kekurangan gizi (wasting) pada anak usia 6-23 bulan di Kecamatan Pagedangan Kabupaten Tangerang tahun 2019 (OR=5,616; 95% CI : 1,193-26,438).

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Undernutrition is a form of malnutrition caused by inadequate food intake and infectious diseases. The present study was conducted to determine the dominant factor related to undernutrition (wasting) among children aged 6-23 months in Pagedangan, Tangerang District. Cross-sectional designs were used to conduct this study. Undernutrition (wasting) was measured using child weight-for-height (WHZ) indicator. The data were collected by anthropometric measurements (body weight and body length) and questionnaire interviews with respondents. This study showed that 17.0% of children aged 6-23 months in Pagedangan, Tangerang District were wasted. Of the 153 children aged 6-23 months, 44.4% had acute respiratory infections and/or diarrhea in the past 2 weeks, 47.7% did not exclusively breastfeed, 43.1% had un-met the minimum dietary diversity, 52.9% had un-met a minimum acceptable diet, 32.0% had a deficit of energy intake and 52.9% had a deficit of protein intake. Chi-square analysis revealed that infectious diseases (p-value=0.032) and energy intake (p-value=0.017) were significantly associated with undernutrition (wasting). Multiple logistic regression analysis revealed that energy intake was the dominant factor of undernutrition (wasting) among children aged 6-23 months in Pagedangan, Tangerang District in 2019 (OR=5,616; 95% CI:1,193-26,438).