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. Author manuscript; available in PMC: 2011 Dec 16.
Published in final edited form as: J Pediatr Psychol. 1999 Aug;24(4):345–354. doi: 10.1093/jpepsy/24.4.345

Table VII.

Percentage of Mothers Endorsing the Most Common Physical and Psychosocial Causes at Both Initial Assessment and at Follow-up

Cause UP group PD group P
Physical cause
 Sensitive or nervous stomach 71.1 57.9 ns
 Stomach producing too much acid or gas 51.4 81.0 .08
 Irritation or inflammation of the stomach or Gl system (ulcer) 45.8 76.5 .02
Psychosocial cause
 Being nervous, worried, or tense 67.2 70.4 ns
 Stress 63.9 65.0 ns
 Putting too much pressure on him/herself 65.7 63.2 ns

Mothers were allowed to endorse more than one cause.