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Table 2 Adjusted a) mean differences in CHQ-PF 50 b) scores between preterms and matched control children

From: Health related quality of life after extremely preterm birth: a matched controlled cohort study

CHQ sub-scales Boys Mean
(95% CI)
Girls
Mean (95% CI)
Interaction p-value
gender × preterm/control
Roles/social emotional -21.7 (-35.1, -8.3) -1.8 (-12.1, 8.5) 0.01
Parental impact-time -19.4 (-31.3, -7.5) -4.5 (-13.6, 4.6) 0.04
Parental impact-emotional -25.8 (-41.5, -10.2) -4.1 (-16.1, 7.9) 0.02
Behavior -22.3 (-35.6, -9.1) -4.5 (-14.7, 5.7) 0.02
Psychosocial summary score -11.0 (-17.9, -4.1) -2.2 (-7.5, 3.0) 0.03
  With learning or attention problems
Mean (95% CI)
Without learning or attention problems
Mean (95% CI)
Interaction p-value attention/learning × preterm/control
General health -20.5 (-31.7, -9.3) -2.0 (-16.1, 12.2) 0.02
Parental impact-time -17.1 (-26.5, -7.8) 2.9 (-9.6, 15.4) 0.01
  Adjusted a) results without interaction
Mean (95% CI)
Physical functioning -3.9 (-8.1, 0.4)
Role/social physical 1.4 (-6.2, 9.0)
Bodily pain 5.0 (-5.2, 15.3)
Self-esteem -3.4 (-12.3, 5.5)
Mental health -4.0 (-9.6, 1.8)
Family activities -9.2 (-19.3, 0.9)
Family cohesionc) -8.7 (-19.7, 2.3)
Physical summary score -1.4 (-5.3, 2.4)
  1. a) Results are presented adjusted for gender, physical activity, learning and/or attention problems and forced expiratory volume in the first second (% predicted), including the interaction term when this was significant.
  2. b) Child Health Questionnaire-Parent Form 50; scale range 0-100 (except summary scores = norm based values with mean of 50 and standard deviation of 10)
  3. c) Single item score