Fig 3: CLASSIFICATION TREE ANALYSIS
p=.000, 2=119.100,df=2 Present
i27 Absent DS 12 8.6% OTH 59 42.1% AVG 69 49.3%
DS 58 82.9% OTH 11 15.7% AVG 01 1.4% p(Adj)=.000,
2
=17.264, df=2 i21
Present
i08
Absent
p(Adj)=.000,
2
=54.015,df=2
Absent DS 42 97.7% OTH 1 2.3% AVG 0 0%
p(adj)=.017,
DS 16 59.3% OTH 10 37% AVG 1 3.7%
2
=8.16,df=2
Present DS 08 61.5% OTH 05 38.5% AVG 0 0%
DS 04 3.1% OTH 54 42.5% AVG 69 54.3%
i05
i06
i09
Present
Absent
P(Adj)=.002,
DS 09 47.4% OTH 10 52.6% AVG 0 0.0%
DS 07 87.5% OTH 0 0.0% AVG 01 12.5%
p(adj)=.000,
=53.477,df=2
Absent
Present
DS 0 0.0% OTH 48 41.0% AVG 69 59.0%
LEGENDS:
=9.479,df=2
2
Present Absent
2
DS 04 40% OTH 06 60% AVG 0 0.0%
DS 07 100% OTH 0 0.0% AVG 0 0.0%
DS=Down’s syndrome cases OTH=Other cases of Intellectual disability AVG =intellectually average people
DS 01 16.7% OTH 05 83.3% AVG 0 0.0%