A study was conducted to identify risk factors for discontinuing dialysis. The socio-demographic characteristics of the patients in the study are presented below. Which of these characteristics has the greatest statistical significance in identifying those who stopped versus those who continued on dialysis ('Other')?

Stopped Data Dialysis Other P Sex, F/M 7/6 86/136 0.43 Mean + SD age (years) 66+ 10 54+17 0.01 Race White 10 148 Native American 21 - 0.76 NO Other 53 Marital status Married or single 184 Divorced or widowed 6 36 _ 0.02 Treatment group CAPD 87 ICD 135 J 0.77 Education Did not complete high school 76 Completed high school 146 0.99 Lodging Nursing home 13 Other 209 0.007 Location City 12 157 1 63 L Other 0.19 Income ($) $10,000 55 210,000 126 _ 0.99 Occupation Work 65 None 12 156 0.06 Outdoor activities Outdoor 117 None 10 104 0.03 Church Religion 84 None 137 _ 0.10 Clubs Belongs 3 34 None 10 187 10.48 Hobbies Hobbies 147 None 74 _ 0.53 "Unless otherwise Indicated, data are given as number of pa- tients. CAPD = continuous ambulatory peritoneal dialysis; ICD = In- center hemodialysis