preferred_name: I used a walker, cane or crutches to get around in past 7D
preferred_name_lc: i used a walker, cane or crutches to get around in past 7d
label: I used a walker, cane or crutches to get around in past 7 days
label_lc: i used a walker, cane or crutches to get around in past 7 days