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Table 2 Item characteristics

From: Clinical study of quality of life of traumatic brain injury patients after decompressive craniectomy and related influencing factors

Scale Item Mean SD Skewness Cronbach’s α
If item removed
Cognition Concentrate 72.86 17.02 −0.64 0.95
Express yourself 74.76 19.76 −1.29 0.96
Remember 73.33 17.08 −0.47 0.95
Plan and solve problem 72.14 20.60 −1.26 0.95
Decisions 70.95 19.03 −1.32 0.96
Find way 74.28 21.50 −1.15 0.96
Speed of thinking 69.76 18.24 −0.86 0.95
Self Energy 71.43 18.81 −1.14 0.95
Motivation 67.14 20.89 −0.86 0.95
Self-esteem 70.95 21.69 −1.03 0.96
Way you look 70.47 18.60 −0.98 0.96
Achievements 65.95 20.25 −0.90 0.96
Self-perception 69.29 19.07 −1.40 0.95
Own future 69.29 17.42 −1.91 0.95
Autonomy Independence 72.62 22.07 −1.09 0.96
Get out and about 67.62 22.18 −0.90 0.96
Domestic activities 71.67 23.27 −1.04 0.96
Run personal finances 67.38 21.12 −0.93 0.96
Participation 66.19 22.19 −0.50 0.96
Social-leisure activities 67.86 21.00 −1.00 0.96
In charge of life 69.29 22.54 −0.97 0.96
Social Affection to others 75.00 18.01 −1.26 0.96
Family members 77.62 18.96 −0.85 0.96
Friends 73.10 17.23 −1.16 0.96
Partner 66.35 17.01 −0.71 0.95
Sex life 75.00 25.00 −1.49 0.96
Attitude towards others 70.47 17.60 −1.08 0.96
Emotions Loneliness 53.57 21.77 0.34 0.96
Boredom 51.90 23.69 0.26 0.95
Anxiety 53.81 18.91 0.15 0.95
Depression 54.76 19.64 0.38 0.95
Anger/aggression 56.90 24.12 −1.26 0.96
Physical Slowness/clumsy 50.76 21.67 0.15 0.95
Other injuries 53.57 20.64 0.25 0.96
Pain 51.90 22.17 0.27 0.96
See/hear 48.10 28.73 0.27 0.96
TBI-effects 46.43 19.74 −0.22 0.96