Table 9: Factors of phlegm pattern questionnaire according to year of study and a previous study.

First yearSecond yearThird yearFourth yearFifth yearStudy by Park et al. [6]

Sputum, cough, feeling of foreign body in the throat, shortness of breathSputum, cough, feeling of foreign body in the throatSputum, cough, feeling of foreign body in the throat, shortness of breath, feeling heavy in the chestSputum, feeling of foreign body in the throatSputum, cough, rumbling sound in the abdomenSputum, cough, feeling of foreign body in the throat
Sickness, indigestion, poor appetite, lumps yellow faceSickness, indigestion, Poor appetite, feeling of abdominal fullness, rumbling sound in the abdomenSickness, indigestion, poor appetite, feeling of abdominal fullnessSickness, indigestion, poor appetite, feeling of abdominal fullness, rumbling sound in the abdomenSickness, indigestion, poor appetite, feeling of abdominal fullness, rumbling sound in the abdomenSickness, indigestion, poor appetite, feeling of abdominal fullness, rumbling sound in the abdomen
Rumbling sound in the abdomen, feeling of abdominal fullnessMucousy stool, rumbling sound in the abdomen, feeling of abdominal fullness
Headache, unclearness in the head, mucousy stool(−)Headache, join pain, flank pain, unclearness in the head, lumps, feeling heavy in the chest feeling of abdominal fullnessHeadache, unclearness in the head, lumps, dizziness, tinnitusHeadache, Unclearness in the head, dizziness, mucousy stool(−)Headache, joint pain, itching
Tinnitus, dizziness, flank pain, mucousy stoolTinnitus, dizziness, sicknessYellowish face, joint pain, flank painJoint pain, flank pain, sputumTinnitus, dizziness, unclearness in the head
Fatigue, feeling heavy in the limbs, yellowish faceFatigue, feeling heavy in the limbs, shortness of breathFatigue, feeling heavy in the limbs, flank painFatigue, feeling heavy in the limbs, shortness of breath poor appetiteFatigue, feeling heavy in the limbs, shortness of breath, poor appetiteFatigue, feeling heavy in the limbs, headache, dizziness, unclearness in the head
Feeling heavy in the chestFeeling heavy in the chest, cough, shortness of breathFeeling heavy in the chest
Palpitation, startled by faint noisePalpitation, startled by faint noise, feeling heavy in the chest, poor appetitePalpitation, startled by faint noise, tinnitus, sputum(−), shortness of breathPalpitation, startled by faint noise, tinnitus, itchingPalpitation, startled by faint noise, dark circles under the eyes, dizzinessPalpitation, startled by faint noise, tinnitus, joint pain, flank pain, shortness of breath feeling, heavy in the chest
Itching, Joint pain, dark circles under the eyesItching, yellowish face, dark circles under the eyes, mucousy stool, rumbling sound in the abdomenItchingDark circles under the eyes, yellowish face, lumps, feeling heavy in the chest(−)Yellowish face, lumps, mucousy stoolItching, lumps, mucousy stool
Feeling of foreign body in the throat, flank painDark circles under the eyes, yellow face

Only items with a factor loading ≥0.4 were extracted.
Factor order does not equal the order of variance explained.
(−) Factor loading is negative value.