Table 4 Item-subscale Correlations of the PedsQL™ 3.0 Asthma Module^§

A

TX

W

C

missing

(n/%)

A

TX

W

C

missing

(n/%)

Asthma Symptoms (A)

1. pain or tightness in his or her chest

0.68

0.34

0.35

0.18

0/0.00

0.50

0.33

0.28

0.08*

0/0.00

2.feeling wheezy

0.73

0.37

0.32

0.22

0/0.00

0.65

0.29

0.32

0.10*

0/0.00

3. having asthma attacks

0.75

0.39

0.34

0.22

0/0.00

0.67

0.38

0.17

0.01*

0/0.00

4.getting scared while having asthma attacks

0.65

0.41

0.34

0.25

0/0.00

0.43

0.29

0.17

0.04*

0/0.00

5.getting out of breath

0.77

0.46

0.39

0.28

0/0.00

0.62

0.32

0.40

0.18

0/0.00

6.coughing

0.60

0.31

0.16

0.19

0/0.00

0.44

0.24

0.14

0.03*

0/0.00

7.taking a deep breath

0.70

0.44

0.36

0.32

0/0.00

0.55

0.38

0.21

0.09*

0/0.00

8. having a stuff or runny nose

0.52

0.25

0.14

0.20

0/0.00

0.47

0.33

0.07*

0.25

0/0.00

9.waking up at night with trouble breathing

0.73

0.46

0.32

0.36

0/0.00

0.47

0.31

0.22

0.0.9*

0/0.00

10.playing with pets

0.53

0.48

0.32

0.35

1/0.30

0.37

0.17

0.16

0.15

1/0.49

11. playing outside

0.61

0.53

0.39

0.30

0/0.00

0.48

0.19

0.25

0.11*

0/0.00

Treatment Problems (TX)

1.medicines making him or her feel sick

0.42

0.62

0.37

0.32

0/0.00

0.32

0.56

0.27

0.25

0/0.00

2.trouble sleeping because of medicines

0.43

0.60

0.29

0.34

0/0.00

0.20

0.33

0.12*

0.15

0/0.00

3. trouble using his or her inhaler

0.35

0.56

0.26

0.26

10/2.97

0.31

0.52

0.11*

0.23

7/3.43

4.disliking carrying his or her inhaler

0.33

0.57

0.27

0.36

9/2.67

0.21

0.47

0.06*

0.29

7/3.43

5.being responsible for his or her medicines

0.39

0.65

0.37

0.31

0/0.00

0.32

0.58

0.22

0.22

0/0.00

6.controlling his or her asthma

0.64

0.67

0.33

0.26

0/0.00

0.53

0.60

0.36

0.23

0/0.00

7.refusing to take medicines

0.29

0.66

0.33

0.28

0/0.00

0.23

0.51

0.12*

0.10*

0/0.00

8.forgetting to take medicines

0.31

0.61

0.37

0.36

1/0.30

0.21

0.51

0.24

0.13*

0/0.00

9.getting anxious when he or she has to have medical treatments

0.40

0.73

0.50

0.37

0/0.00

0.29

0.49

0.30

0.27

0/0.00

10.getting anxious about going to the doctor

0.40

0.68

0.40

0.34

0/0.00

0.26

0.43

0.14

0.07*

0/0.00

11.getting anxious about going to the hospital

0.38

0.68

0.49

0.36

0/0.00

0.23

0.43

0.22

0.08*

0/0.00

Worry (W)

1.worrying about side effects from medical treatments

0.39

0.51

0.91

0.28

28/8.31 ‡

0.34

0.31

0.69

0.15

0/0.00

2.worrying about whether or not medical treatments are working

0.42

0.53

0.93

0.38

28/8.31 ‡

0.28

0.35

0.77

0.25

0/0.00

3.worrying about his or her asthma

0.42

0.52

0.92

0.31

22/6.53 ‡

0.35

0.28

0.83

0.08*

0/0.00

Communication (C)

1.telling the doctors and nurses how he or she feels

0.35

0.47

0.32

0.91

16/4.75 ‡

0.16

0.36

0.14

0.82

2/0.98

2.asking the doctors or nurses questions

0.34

0.46

0.32

0.96

23/6.82 ‡

0.14*

0.27

0.17

0.87

7/3.43

3.explaining his or her illness to other people

0.37

0.49

0.36

0.93

20/5.93 ‡

0.22

0.35

0.19

0.90

2/0.98