Application of Data Mining Technology on Surveillance Report Data of HIV/AIDS High-Risk Group in Urumqi from 2009 to 2015

Table 6

Selection attributes used in models of MSM dataset.

Rank	Attribute	MeanDecreaseGini
1	B01: age	76.8033
2	B06: educational level	27.1032
3	A01B: monitoring sites	26.0119
4	A06: sample source	23.9942
5	B05: inhabit time	18.3735
6	B04: nation	16.2218
7	B02: marital status	14.9883
8	D03: did you use a condom for sex with the same sex last time	12.7123
9	I03: have you ever received a companion education to prevent HIV/AIDS	12.2440
10	J01: has HIV been tested in the last year	12.1464
11	I01: have you ever received a condom promotion or HIV/AIDS counselling and testing to prevent HIV/AIDS	10.1819
12	B03: the location of household register	9.7513
13	F01: did you have sex with the opposite sex last 6 months	8.5185
14	T04C: syphilis test results	8.2889
15	E01: have you had any commercial sex with people of the same sex last 6 months	7.6851