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Table 4 Parental outcome measures: parenting stress (PSI) and social support (ISR)

From: Psychological functioning in children suspected for mitochondrial disease: the need for care

 NMean (SD)% in clinical rangeNon-clinical populationStudent’s tClinical populationStudent’s t
PSI
Mothers8547.80 (20.23)5.9%54.4aT(84) = −3.009*85.9aT(84) = −17.368**
Fathers7249.10 (20.89)11.1%48.5aT(71) = .24370.4aT(71) = −8.653**
ISR
Mothers11117.01 (3.79)1.8%15.1bT(110) = 5.302**14.5cWilcoxon, p = .000
Fathers8916.82 (3.76)2.2%15.1bT(88) = 4.318**14.5cWilcoxon, p = .000
  1. *P < .05
  2. **P < .001
  3. aNorms De Brock 1992
  4. bNorms van Dam-Baggen and Kraaijmaat (1992)
  5. cHuiskes Kraaijmaat Bijlsma 2004