Table 5.

The group notation table.

Groups	ISI cut-off scores (ISI)	ESS cut-off scores (ESS)
A	ISI $\le$ 14	ESS $\ge$ 11
B	ISI $\ge$ 15	ESS $\ge$ 11
C1	ISI $\le$ 7	ESS $\le$ 11
C2	8 $\le$ ISI $\le$ 14	ESS $\le$ 11
D	ISI $\ge$ 15	ESS $\le$ 11