Table 1

Baseline Characteristics of Children and Parents by Intervention Group


Guided Imagery (n = 14)
Breathing (n = 8)
P-value1

Child Factors



     % Male
23
50
0.17
     Years of age
11.1
11.0
0.94
     Months of pain at enrollment2
24.5
13.6
0.30
     Days of pain previous month
23.0
14.4
0.04
     Mean intensity of pain episodes
2.7
2.7
0.88
     Days with a missed activity in previous month
4.0
1.3
0.12
     Depression score2
6.6
7.1
0.80
     Somatization score
6.5
4.0
0.15
     Children's Somatization Inventory-total score
22.0
15.3
0.30
     Anxiety score2
9.7
8.3
0.36
     Perfectionism score2
9.0
8.1
0.43
     Separation anxiety score
12.1
8.0
0.08
     Temperament



          Anger
2.4
2.3
0.89
          Distress
2.1
1.8
0.41
          Fearfulness
2.2
2.4
0.54
          Activity
2.3
2.8
0.24
          Sociability
3.2
3.3
0.86




Parent Factors



     Ethnicity



     % Both parents Anglo
54%
50%
1.00
     Anxiety score2
3.7
3.1
0.73
     Somatization score2
6.9
3.8
0.13
     Depression score2
6.8
6.3
0.87




Parenting Style



     Father caring score
4.1
3.6
0.59
     Father overprotection score
3.5
4.4
0.26
     Mother caring score
5.0
3.8
0.09
     Mother overprotection score
4.3
4.0
0.57

1 Chi-square test or Student t-test

2 Geometric mean of natural logarithm transformed data

Weydert et al. BMC Pediatrics 2006 6:29   doi:10.1186/1471-2431-6-29