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Table 2 Psychometric properties of all items, grouped into domains

From: Development of children’s hymenoptera venom allergy quality of life scale (CHVAQoLS)

  

A

B

C

D

E

 

Anxiety

    

0.63

A1

Anxiety about being stung

2.7

1.1

1

0.69

---

A2

Anxiety when seeing an insect that could sting you close to you

2.8

1.2

3

0.83

0.63

A3

Anxiety when seeing an insect that could sting you close to you when you are with your Parents

2.4

1.1

1

0.76

0.60

A4

Anxiety when seeing an insect that could sting you when you are with other adults (but not your parents)

2.5

1.1

3

---

---

A5

Anxiety about being stung when being at school

2.3

1.1

2

0.82

0.64

A6

Anxiety when seeing an insect that could sting you close to you when you are on your own;

3.0

1.2

7

---

---

A7

Anxiety when seeing an insect that could sting you close to you when you are with your peers (e.g. on your way back from school or doing a sport);

2.7

1.1

6

---

---

A8

Anxiety on being told that an insect that could sting you is flying behind you;

2.8

1.1

1

0.84

0.66

A9

Anxiety when an insect is so close to you that you have to ward it off

2.8

1.1

0

0.74

0.60

AA

Anxiety when seeing an insect that could sting you close to you when you are playing with your peers (at a friend’s birthday, a campfire or a school disco)

2.7

1.1

1

0.82

0.66

AB

Anxiety when seeing an insect that could sting you far away from you

2.4

1.1

0

0.75

0.60

 

Possible answers: 1. not at all, 2. a bit, 3. moderately, 4. very much, 5. terribly

 

Caution

    

0.61

C1

Looking out for stinging insects

3.1

1.3

0

0.80

0.59

C2

Going away when seeing a stinging insect

3.7

1.2

0

0.84

0.66

C3

Avoiding places where can see a stinging insect

3.2

1.3

0

0.70

0.52

C4

Running away from a place where have seen a stinging insect

3.2

1.3

1

0.85

0.65

C5

Feeling like running away when seeing a stinging insect

3.2

1.4

2

---

---

C6

Warding off an insect flying so close that it could sting

2.6

1.2

0

0.33

---

C7

Wanting to hide when seeing a stinging insect close to someone

3.0

1.4

1

0.80

0.60

C8

Thinking about how to avoid being stung

3.0

1.2

0

0.81

0.63

 

Possible answers: 1. never, 2. seldom, 3. sometimes, 4. often, 5. always

 

Limitations

    

0.68

L1

Regret due to not being able to do some things for fear of being stung

2.1

1.0

1

0.69

---

L2

Regret due to not being able to do some things out of doors for fear of being stung

2.3

1.1

5

---

---

L3

Regret due to not being able to do some things for fear of being stung when you are with your parents

2.2

1.1

4

---

---

L4

Regret due to not being able to do some things for fear of being stung when you are with other adults

2.1

1.1

5

---

---

L5

Regret due to avoiding places where insects appear

2.3

1.0

1

0.81

0.68

L6

Regret due to not being able to do some things for fear of being stung when you are at school

2.1

1.1

4

---

---

L7

Regret due to not being able to do some things for fear of being stung during school holidays, season breaks or other forms of time off school

2.4

1.2

5

0.86

0.67

L8

Regret due to not being able to do some things for fear of being stung when you are with your peers

2.3

1.2

1

0.86

0.68

L9

Regret due to not being able to do some things for fear of being stung when you are playing with your peers

2.4

1.1

4

---

---

LA

Regret due to not playing with your peers because you thought you could be stung at that time

2.1

1.3

1

0.80

0.69

 

Possible answers: 1. I can do this, 2. I don’t regret it, although I cannot do this, 3. I slightly regret I cannot do this, 4. I moderately regret I cannot do this, 5. I very much regret I cannot do this.

 

Discomfort

    

0.68

D1

Discomfort due to looking out for stinging insects that could sting you;

2.6

1.2

3

---

---

D2

Discomfort due to looking out for insects when you are out of doors

2.7

1.2

2

0.81

0.66

D3

Discomfort due to looking out for insects that could sting you when you are with your parents

2.6

1.2

4

0.84

0.70

D4

Discomfort due to looking out for insects that could sting you when you are with other adults (not your parents)

2.7

1.2

6

---

---

D5

Discomfort due to avoiding places where insects appear

2.5

1.1

1

0.83

0.68

D6

Discomfort due to looking out for insects that could sting you when you are at school

2.2

1.2

1

0.84

0.67

D7

Discomfort due to looking out for insects that could sting you when you are on holiday

2.7

1.2

7

---

---

D8

Discomfort due to looking out for insects that could sting you when you are with your peers

2.5

1.2

3

0.83

0.70

D9

Discomfort due to warding off insects

2.5

1.1

0

0.64

---

DA

Discomfort due to looking for insects while playing with your peers

2.7

1.2

5

---

---

DB

Discomfort due to thinking about how to avoid being stung

2.7

1.1

2

0.81

0.66

 

Possible answers: 1. I don’t do it, 2. I do it but I don’t feel any discomfort, 3. I feel slight discomfort, 4. I feel moderate discomfort, 5. I feel a lot of discomfort.

 

Support

    

0.58

S1

Talking to parents about being afraid of being stung

3.0

1.2

3

---

---

S2

Thinking that parents know very well about how afraid of being stung you are after talking to them about your fear

3.1

1.4

3

---

---

S3

Parents try to ease your fear of being stung when they are talking to you

3.2

1.5

3

0.86

0.63

S4

Talking to parents about risks that you face when you are stung

2.6

1.1

0

0.80

0.55

S5

Parents trying to calm you when they see an insect flying next to you

3.0

1.6

1

---

---

S6

Talking to parents about the way your peers treat you because of your fear of being stung

2.8

1.3

5

---

---

S7

After talking to your parents, feeling that they know well about the way your peers treat you because of your fear of being stung

2.8

1.6

1

0.82

0.59

S8

Talking to parents about the way your peers treat you because you try to avoid being stung

2.8

1.2

1

---

---

S9

After talking to parents, feeling that they know well about the way your peers treat you because you try to avoid being stung

2.7

1.6

1

0.75

0.53

 

Possible answers: 1. never talk about that, 2. never, in spite talking about that, 3. seldom, 4. sometimes, 5. often,

 

Feeling of safety

    

0.45

F1

Thinking that you will be all right after having been being stung by an insect

3.0

1.0

0

−0.54

---

F2

Thinking that somebody will help after you have been stung

1.7

0.7

0

0.16

---

F3

Thinking that being stung puts your life at risk

2.2

1.0

0

0.75

0.47

F4

Thinking that bees/wasps are good insects

2.6

1.3

0

0.24

---

F5

Thinking that after being stung you will soon feel as well as before that

2.8

1.0

0

−0.63

0.41

F6

Thinking that after have been being stung you will be able to summon help, even if you feel very bad

2.1

0.8

0

−0.23

---

F7

Thinking that being stung puts somebody’s health at risk

2.3

1.1

0

0.75

0.48

F8

Thinking that bees/wasps only sting to defend themselves

2.1

1.0

0

0.00

---

F9

Thinking that somebody will help you if you feel very bad after you have been stung?

1.9

0.9

0

−0.02

---

FA

Thinking that something bad may happen after you have been stung

2.5

1.0

0

0.74

0.48

FB

Thinking that you will get soon feel well after you have been stung

2.6

1.0

0

−0.64

0.40

 

Possible answers: 1. definitely yes, 2. rather yes, 3. neither yes nor not, 4. rather not, 5. definitely not

  1. The table presents: arithmetic means (column A) and standard deviations (column B) of particular item, number of salient correlations for each item (Column C), factor loadings of particular item obtained in PCA done for whole domain including this item (column D), and scalability coefficients Hi for particular items, and, in row presenting name of the domain, homogeneity coefficient H for the subscale measuring this particular latent variable, which included all items available in the domain at that stage of analysis (column E).