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Table 1 Items included in the Item Reduction Questionnaire. Overall importance of each item as measured by the Frequency Importance Product.

From: Development of a Health-Related Quality of Life Questionnaire (HRQL) for patients with Extremity Soft Tissue Infections (ESTI)

Item Frequency* Mean importance+ Overall importance++
Symptoms    
Pain 0.95 3.69 3.49
Fever 0.42 3.23 1.36
Chills 0.51 3.06 1.55
Sweating 0.43 2.84 1.23
Loss of appetite 0.46 3.07 1.42
Nausea 0.27 2.63 0.72
Numbness 0.40 2.74 1.10
Swelling 0.92 3.88 3.56
Blistering 0.28 3.28 0.93
Fatigue 0.54 3.40 1.83
Trouble moving 0.75 3.47 2.59
Stiffness 0.60 3.28 1.97
Soreness 0.92 3.76 3.44
Pressure 0.66 3.43 2.28
Throbbing 0.61 3.36 2.05
Streaking 0.20 2.81 0.56
Discomfort in a distant body part 0.40 3.36 1.34
Discomfort caused by treatment of your infection 0.33 2.74 0.89
Daily Functioning    
Doing your job 0.79 3.96 3.13
Walking 0.59 3.48 2.05
Bathing 0.62 3.45 2.14
Using the toilet 0.38 2.97 1.13
Driving 0.51 3.27 1.65
Changing clothes 0.64 2.98 1.92
Hobbies 0.51 3.10 1.57
Earning an income 0.54 4.08 2.19
Exercising 0.66 3.20 2.12
Falling asleep 0.62 3.53 2.19
Traveling 0.38 3.03 1.15
Emotional Functioning    
Frustrated 0.68 3.46 2.37
Impatient 0.46 3.33 1.54
Irritable 0.57 3.09 1.76
Angry 0.28 3.27 0.93
Disappointed 0.61 3.18 1.94
Afraid 0.47 3.27 1.55
Annoyed 0.55 3.50 1.92
Embarrassed 0.31 2.77 0.85
Miserable 0.34 3.26 1.10
Depressed 0.28 2.67 0.76
Sad 0.34 2.75 0.93
Stressed 0.51 2.98 1.51
Exhausted 0.58 3.38 1.96
Inconvenienced 0.75 3.41 2.55
Social Interactions    
Difficulty socializing because your infection is "disfiguring" 0.19 2.57 0.49
Difficulty getting out of the house 0.41 3.21 1.32
Less desire to socialize than usual 0.40 3.11 1.24
You are inconveniencing your friends and family 0.56 3.37 1.88
Difficulty being physically intimate with your partner 0.36 3.56 1.27
Difficult being emotionally intimate with your partner 0.24 3.33 0.81
  1. *Frequency of study participants reporting item as a problem (maximum = 1.0)
  2. +Mean importance assigned to item if reported as a problem (maximum = 5.0)
  3. ++Frequency importance product (frequency × mean importance) (maximum = 5.0)
  4. NB: The twenty highest ranking items are in bold font and were included in the final questionnaire and calculation of the ESTI score.