-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased

general health (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Excellent
2 = Very Good
3 = Good
4 = Fair
5 = Poor

health year before comparison (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Much better now than 1 year ago
2 = Somewhat better now than 1 year ago
3 = About the same
4 = Somewhat worse now than 1 year ago
5 = Much worse now than 1 year ago

limit vigorous activities (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Yes, limited a lot
2 = Yes, limited a little
3 = No, not limited at all

less time working - health (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
0 = No
1 = Yes

extent - social activities - health/emotional (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Not at all
2 = Slightly
3 = Moderately
4 = Quite a bit
5 = Extremely

bodily pain (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = None
2 = Very mild
3 = Mild
4 = Moderate
5 = Severe
6 = Very severe

pain interfering with work (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Not at all
2 = A little bit
3 = Moderately
4 = Quite a bit
5 = Extremely

felt peppy (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = All of the time
2 = Most of the time
3 = Good bit of the time
4 = Some of the time
5 = Little of the time
6 = None of the time

time - social activities - health/emotional (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = All of the time
2 = Most of the time
3 = Some of the time
4 = A little of the time
5 = None of the time

get sick easily (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = Definitely True
2 = Mostly True
3 = Not Sure
4 = Mostly False
5 = Definitely False

how old? (MOS, intake, participant)
-9999 = Missing
-8888 = Question not asked
-7777 = Form updated during study, question not on new form
-6666 = Participant failed to complete
-3333 = Not applicable, nested question
-2222 = Question not applicable
-1111 = Participant deceased
1 = 18-24
2 = 25-44
3 = 45-64