Pengaruh Konsumsi Teh Hijau Terhadap Tingkat Kecemasan dan Kualitas Tidur Pada Mahasiswa Keperawatan Tingkat Akhir di Universitas Muhammadiyah Ponorogo

ABSTRACT
THE EFFECT OF GREEN TEA CONSUMPTION ON ANXIETY LEVELS AND SLEEP QUALITY AMONG FINAL-YEAR NURSING STUDENTS

Pre-Experimental Research at Universitas Muhammadiyah Ponorogo.

By: Natasya Anggi Ramadhevi

Final-year nursing students are vulnerable to experiencing anxiety and poor sleep quality due to academic demands during the completion of their undergraduate thesis. One of the non-pharmacological interventions that may help reduce anxiety and improve sleep quality is the consumption of green tea (Camellia sinensis), which contains L-theanine, catechins, and polyphenols. This study aimed to analyze the effect of green tea consumption on anxiety levels and sleep quality among final-year nursing students.
This study employed a pre-experimental design with a one-group pretest-posttest approach. The sample consisted of 15 final-year nursing students selected using proportional simple random sampling. Participants consumed green tea twice daily for seven consecutive days. Anxiety levels were measured using the Depression Anxiety Stress Scale-21 (DASS-21) questionnaire anxiety subscale, while sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI) questionnaire. Data were analyzed using the Paired Samples t-test.
The results showed that the mean anxiety score decreased from 13.07 ± 1.981 to 4.93 ± 1.831, while the mean sleep quality score decreased from 9.73 ± 2.187 to 3.73 ± 0.884. Statistical analysis demonstrated a significant effect of green tea consumption on anxiety levels and sleep quality among final-year nursing students (p-value < 0.001). It was concluded that green tea consumption effectively reduced anxiety levels and improved sleep quality among final-year nursing students.

Keywords: green tea, anxiety, sleep quality, final-year nursing students.