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Guillain Barré Syndrome (GBS) in an acute illness which causes muscle weakness. The paralysis starts from the lower limbs and ascends upwards. The severity of disease is graded from 1 to 5 based upon the extent of disability.

Grading of Guillain Barré Syndrome

Table 1.1

Grade Description
Grade 1 Mild to moderate disability
Grade 2 - 3 Severe Disability
Grade 4 - 5 Very severe disability requiring respiratory support

A study was undertaken to find the association between the age when the disease develops, duration of onset and severity of disability. 50 cases of GBS in each of the given age groups were studied. The results of the study are shown in the figure and the table below.

Figure 1.1

Table 1.2

Age of Patients Average duration of onset of disease Average duration of hospitalization
0 - 2 years 7 days 14 days
2 - 5 years 8 days 10 days
5 - 13 years 9 days 9 days
13 - 18 years 3 days 30 days
18 - 40 years 8 days 10 days
40 - 60 years 7 days 14 days
60 - 70 years 7 days 14 days

Based on the data given, which of these is incorrect?


Grade 2-3 Guillain Barré Syndrome is the most common form of the disease.


The graph of the proportion of very severe disease at various ages will have two peaks, one in adolescence and the other in old age.


The incidence of Grade 1 GBS is the same in the age groups of 18-40 years and 40-60 years.


Grade 4-5 disease forms the highest portion of adolescent GBS cases.

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