Effects of Chamomile With L-theanine Beverage Among Young Women Experiencing Primary Dysmenorrhea

Pain intensity

The pain intensity is assessed using the Visual Analogue Scale (VAS) and the Numeric Rating Scale (NRS). Participants mark the point on the scale (0 to 10) that best represents the average intensity of their menstrual pain. A higher score on the VAS and NRS indicates greater pain intensity.

Time frame: 2 months

Menstrual symptoms

The Cox Menstrual Symptom Scale (CMSS) is used to assess the severity of menstrual-related symptoms experienced by participants during their most recent menstrual cycle. Each item in the CMSS is rated on a scale from 0 (not noticeable), 1 (slightly bothersome), 2 (moderately bothersome), 3 (severely bothersome), to 4 (very severely bothersome).

Time frame: 2 months

Sleep quality

The Pittsburgh Sleep Quality Index (PSQI) is used to assess the sleep quality of participants during the past week. The total PSQI score ranges from 0 to 21, with higher scores indicating poorer sleep quality.

Time frame: 2 months

Mood

The Profile of Mood States (POMS) is used to assess six mood subscales (vigor, tension, depression, anger, fatigue, and confusion) of participants during the past week. Each item is rated on a 5-point Likert scale, ranging from 0 (not at all), 1 (a little), 2 (moderately), 3 (quite a lot), and 4 (extremely).

Time frame: 2 months