Variables B S.E. Wald df Sig. Exp(B) 95,0% C.I.for EXP(B)
  Lower Upper Lower Upper Lower Upper Lower Upper
Age ,030 ,040 ,549 1 ,459 1,030 ,952 1,115
SF-36 ,154 ,150 1,057 1 ,304 1,166 ,870 1,564
EQ-5D -,019 ,179 ,011 1 ,916 ,981 ,691 1,393
Weight ,053 ,281 ,036 1 ,849 1,055 ,608 1,830
Lenght ,021 ,257 ,006 1 ,936 1,021 ,617 1,689
BMI -,115 ,771 ,022 1 ,881 ,891 ,197 4,039
D.Age* -,052 ,042 1,519 1 ,218 ,949 ,874 1,031
EQ-5D Percentage† -,010 ,021 ,232 1 ,630 ,990 ,949 1,032
Constant -5,162 42,259 ,015 1 ,903 ,006    
Table 4: The binary regresson model investigating the relationship between smoking with quality of life (SF-36, EQ-5D) and other variables in AS patients. *The age at onset of disease symptoms in patients. †The general health perspective percentage in EQ-5D patients.