Comparison of Dizziness Factors for Mild Traumatic Brain Injury Patients with and without Dizziness: A Factor Analysis and Propensity Score Model Study

Table 4

Results of the component analysis: five factors of Japan version and four factors of Chinese version—label (factor loading) of the corresponding items.

DHI	English version	Abbreviated	Taiwan 4 factor
8	Physical	Perform more ambitious activities	T1 (0.52)
11	Physical	Quick head movements	T1 (0.61)
25	Physical	Bend over	T1 (0.62)
14	Functional	Strenuous homework or yard work	T1 (0.48)
24	Functional	Job or household responsibilities	T1 (0.66)
18	Emotional	Hard to concentrate	T1 (0.61)
23	Emotional	Depressed	T1 (0.60)
16	Functional	Go for a walk by yourself	T2 (0.56)
19	Functional	Walk around house in the dark	T2 (0.58)
17	Physical	Walk down a sidewalk	T2 (0.44)
15	Emotional	Afraid people think you are intoxicated	T2 (0.47)
20	Emotional	Afraid to stay home alone	T2 (0.70)
9	Emotional	Afraid to leave home alone	T2 (0.56)
10	Emotional	Embarrassed in front of other	T2 (0.40)
21	Emotional	Feel handicapped	T2 (0.57)
22	Emotional	Stressed relationship with family/friends	T2 (0.63)
12	Functional	Avoid heights	T3 (0.51)
5	Functional	Get into or out of bed	T3 (0.46)
13	Physical	Turning over in bed	T3 (0.57)
4	Physical	Walk down the supermarket aisle	T3 (0.48)
1	Physical	Look up	T3 (0.54)
2	Emotional	Feel frustrated	T4 (0.50)
3	Functional	Restrict travel	T4 (0.66)
6	Functional	Restrict participation in social activities	T4 (0.59)
7	Functional	Hard to read	T4 (0.45)