Latar belakang: Anemia merupakan keadaan ketika jumlah sel darah merah berada dibawah nilai normal. Beberapa faktor yang mempengaruhi anemia pada remaja adalah rendahnya asupan zat besi dan protein, konsumsi inhibitor zat besi seperti tanin secara bersamaan, serta faktor diluar konsumsi makanan seperti durasi tidur yang buruk.
Tujuan: Mengetahui hubungan antara frekuensi minum teh, tingkat kecukupan protein dan kualitas tidur terhadap kejadian anemia pada santriwati Pondok Pesantren Al-Hadi Girikusuma Mranggen Demak.
Metode: Penelitian observasional dengan desain cross-sectional yang dilakukan di Pondok Pesantren Al-Hadi Girikusuma, Mranggen, Demak dengan jumlah sampel sebanyak 79 santriwati yang ditentukan menggunakan rumus Lameshow dengan teknik pengambilan consecutive sampling. Data frekuensi minum teh diperoleh dari Semi Quantitative Food Frequency Questionnaire (SQ-FFQ), tingkat kecukupan protein diperoleh dari recall 3x24 jam, dan kualitas tidur diperoleh dari kuesioner Pittsburgh Sleep Quality Index (PSQI). Analisis data bivariat menggunakan uji korelasi Gamma dan Chi-Square. Uji multivariat dengan uji regresi logistik ordinal. Hasil: Karakteristik kejadian anemia responden, mayoritas dalam kategori tidak anemia (68,4%), frekuensi minum teh mayoritas dalam kategori sering (55,7%), tingkat kecukupan protein mayoritas sangat kurang (62%), dan kualitas tidur mayoritas dalam kategori buruk (91,1%). Hasil analisis bivariat menunjukkan frekuensi minum teh terhadap kejadian anemia (p=0,017), tingkat kecukupan protein terhadap kejadian anemia (p=<0,001). Serta, kualitas tidur dengan kejadian anemia (p=0,420).
Kesimpulan: Terdapat hubungan antara frekuensi minum teh dan tingkat kecukupan protein terhadap kejadian anemia, tidak terdapat hubungan antara variabel kualitas tidur dengan kejadian anemia. Variabel tingkat kecukupan protein merupakan yang paling berpengaruh terhadap kejadian anemia pada santriwati Pondok Pesantren Al-Hadi sebesar 7,38 kali.

ABSTRACT:
Background: Anemia is a condition in which the number of red blood cells is less than normal. Some factors that affect anemia in adolescents are low iron and protein intake, concurrent consumption of iron inhibitors such as tannins, and non- food factors such as poor sleep duration.
Objective: To determine the relationship between the frequency of drinking tea, the level of protein adequacy and sleep quality to the incidence of anemia in female students of Al-Hadi Girikusuma Islamic Boarding School, Mranggen Demak.
Methods: Observational research with a cross-sectional design conducted in Al- Hadi Girikusuma Islamic Boarding School, Mranggen, Demak with a sample size of 79 female students determined using the Lameshow formula with consecutive sampling technique. Data on tea drinking frequency was obtained from Semi Quantitative Food Frequency Questionnaire (SQ-FFQ), protein adequacy was obtained from 3x24 hour recall, and sleep quality was obtained from Pittsburgh Sleep Quality Index (PSQI) questionnaire. Bivariate data analysis using gamma correlation test and chi-squared. Multivariate analysis with ordinal logistic regression test.
Results: The characteristics of anemia incidence of the respondents, the majority in the category of not anemic (68.4%), the frequency of drinking tea majority in the category of often (55.7%), the level of protein adequacy majority very less (62%), and the quality of sleep majority in the category of poor (91.1%). The results of bivariate analysis showed the frequency of tea drinking to the incidence of anemia (p=0.017), the level of protein adequacy to the incidence of anemia (p=<0.001). And, sleep quality with the incidence of anemia (p=0.420).
Conclusion: There is a relationship between the frequency of drinking tea and the level of protein adequacy to the incidence of anemia, there is no relationship between the variable of sleep quality with the incidence of anemia. The variable of protein adequacy level is the most influential on the incidence of anemia in female students of Al-Hadi Islamic Boarding School, which is 7.38 times.