person id (duid + pid)
saq: health in general sf-12
saq: hlth limits mod activities sf-12
saq: hlth limits climbing stairs sf-12
saq 4 wks: did less b/c phys probs sf-12
saq 4 wks: limit wk b/c phys probs sf-12
saq 4 wks: did less b/c ment probs sf-12
saq 4 wks: lim wk b/c ment probs sf-12
saq 4 wks: pain limits normal work sf-12
saq 4 wks: felt calm/peaceful sf-12
saq 4 wks: had a lot of energy sf-12
saq 4 wks: felt downhearted/blue sf-12
saq 4 wks: hlth stopped soc activ sf-12