Document Type : Original Articles


1 Biostatistics Department, Shiraz University of Medical Sciences, Shiraz, Iran.

2 Biostatistics Department, Shiraz University of Medical Sciences, Shiraz, Iran/ Instructor of Biostatistics, Sirjan School of Medical Sciences. Sirjan, Iran

3 Department of Occupational Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran


Background: Occupational therapy outcomes for motor improvement are
different among the children with cerebral palsy to determine the effective
factors related to gross motor achievement in the children with Cerebral palsy
(CP), the present project was designed.
Methods: In a quasi-experimental study, 59 CP patients with Gross Motor
Function Classification System (GMFCS) 1-4 were evaluated by Gross Motor
Function Measure (GMFM). They were referred to four centers in Shiraz, Iran,
in 2015. Results of therapy were monitoring five times during six months for
each participant, according to achievement to stages of GMFM, and marginal
modeling method was utilized.
Results: The results revealed the significance of some factors including, age at
starting occupational therapy services, number of sessions per week, type of
spastic, level four of socio economic status (SES), grade two of GMFCS, and time
effect on the outcome (upgrade to a higher level on each occasion) (p <0.05).
Conclusion: Based on the odds ratio (OR) values, the number of occupational
therapy sessions per week had the most positive effect on gross motor function
upgrade for at least two half times. Age at starting occupational therapy service
was the second important factor in the outcome. However, spending more time
for therapy and early starting relates to family characteristics and also financial


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