Table 3 Description of the Clue app tracking categories and symptoms.
Category | Description | Symptoms | Number of tracking events (%) for the consistently not highly variable group | Number of tracking events (%) for the consistently highly variable group |
|---|---|---|---|---|
Period | Period flow | Spotting, light, medium, and heavy | 22,096,884 (19.71%) | 913,403 (18.56%) |
Emotion | Emotional state | Happy, sensitive, sad, and PMS | 11,377,997 (10.15%) | 501,610 (10.19%) |
Pain | Type of pain experienced | Cramps, tender breasts, headache, and ovulation pain | 9,730,958 (8.68%) | 406,710 (8.26%) |
Energy | Energy level | Low, high, exhausted, and energized | 8,710,403 (7.77%) | 410,216 (8.34%) |
Sleep | Hours of sleep | 0–3, 3–6, 6–9, and >9 | 8,597,769 (7.67%) | 405,726 (8.24%) |
Skin | Skin health | Acne, good, oily, and dry | 5,896,540 (5.26%) | 263,258 (5.35%) |
Mental | Mental state | Calm, distracted, focused, and stressed | 5,871,137 (5.24%) | 252,621 (5.13%) |
Sex | Sexual health | Unprotected sex, high sex drive, protected sex, and withdrawal sex | 5,813,292 (5.19%) | 271,540 (5.52%) |
Motivation | Motivation level | Motivated, unmotivated, productive, and unproductive | 5,467,728 (4.88%) | 236,052 (4.80%) |
Craving | Food cravings | Sweet, salty, carbs, and chocolate | 4,867,777 (4.34%) | 224,751 (4.57%) |
Digestion | Digestive health | Great, bloated, gassy, and nauseated | 4,825,627 (4.30%) | 209,651 (4.26%) |
Social | Social behavior | Sociable, withdrawn, supportive, and conflict | 4,178,744 (3.73%) | 186,110 (3.78%) |
Poop | Stool health | Normal, constipated, great, and diarrhea | 3,889,471 (3.47%) | 172,716 (3.51%) |
Hair | Hair health | Good, bad, oily, and dry | 3,128,384 (2.79%) | 147,844 (3.00%) |
Fluid | Vaginal discharge type | Creamy, egg white, sticky, and atypical | 2,378,211 (2.12%) | 106,782 (2.17%) |
Collection method | Method for period collection | Pad, tampon, panty liner, and menstrual cup | 2,027,258 (1.81%) | 84,270 (1.71%) |
Exercise | Physical exercise | Running, yoga, biking, and swimming | 1,222,568 (1.09%) | 44,946 (0.91%) |
Party | Party-related experiences | Drinks, cigarettes, big night, and hangover | 900,444 (0.8%) | 40,779 (0.83%) |
Medication | Type of medication taken | Pain, cold/flu, antihistamine, and antibiotic | 561,540 (0.5%) | 21,030 (0.43%) |
Ailment | Physical maladies | Cold/flu, allergy, injury, and fever | 550,951 (0.49%) | 20,899 (0.42%) |
