Characteristics Time of evolution to wheelchair 25% (133.9) 50% (267.8) Qui-square (Logrank)   75% (407.8) p
Gender
Male
Female

164.4
124.8

346.9
267.8

373.4
407.8
0.54 0.460
Age  ≥ 50 years
No
Yes

152.1
117.7

298.3
0. 0

407.8
0. 0
1.59 0.200
Age ≥ 60 years
No
Yes

143.1
59.8

298.3
0. 0

407.8
0. 0
6.01 0.010
Educational Level
Illiterate
1 to 8 years
More than 8 years

133.9
124.7
170.4

316.5
298.3
253.6

-
373.3
407.8
0.27 0.870
Marital status
Single
Married
Separated
Widowed

183.6
137.9
131.9
117.7

328.7
253.6
243.5
188.8

373.4
-
407.8
-
2.75 0.430
Seropositive spouse
No
Yes

131.9
137.9

267.8
-

373.3
-
0.74 0.380
Seropositive mother
No
Yes

133.9
-

253.6
-

407.8
-

0.74
0.380
Blood Transfusion
No
Yes

132.9
177.5

253.6
316.5

407.8
328.7
0.13 0.710
Smoking
No
Yes

133.9
146.1

267.8
328.7

373.3
407.8
0.02 0.890
Alcohol consumption
No
Yes

133.9
146.1

267.8
328.7

407.8
346.9

0.05

0.820
Table 2: Evolution in months of gait disability as per sociodemographic characteristics, means of transmission and lifestyle, in 206 patients with HAM/TSP, admitted to the Belo Horizonte Sarah Hospital from January/1998 to December/2007.