risk factors of patients fall in hospital

I have two result i got from my research and I need to write disscussion about this two results:
first : illeterate patients or those with low education level are more at risk of fall in Hospital ?
A)what are the causes for that , B)add studies with same results support this ideas
Second: more patients who fall were married
A)what do you think the causes for this result
B)support your disscussion with more studies
C) then write about nursing roles in this , some recomendation to prevent the fall of illeterate patients to provide more education
NOTE:
1)the refrencess should be updated from 2016 then
2)my study was conducted in Saudi Arabia better to add studies in saudi arabia