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An "X" indicates the variable is available for the listed sample.
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Variable
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Variable Label
|
Type |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
09 |
08 |
07 |
06 |
05 |
04 |
03 |
02 |
01 |
00 |
Variable
|
99 |
98 |
97 |
96 |
95 |
94 |
93 |
92 |
91 |
90 |
89 |
88 |
87 |
86 |
85 |
84 |
83 |
82 |
81 |
80 |
79 |
78 |
77 |
76 |
75 |
Variable
|
74 |
73 |
72 |
71 |
70 |
69 |
68 |
67 |
66 |
65 |
64 |
63 |
|
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| BOWELCONYR | Had severe constipation, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | BOWELCONYR | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELCONYR | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELFUNEV | Ever had functional bowel | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELFUNEV | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELFUNEV | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELFUNYR | Had functional bowel, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELFUNYR | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELFUNYR | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELINFYR | Had inflammatory bowel disease, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | BOWELINFYR | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELINFYR | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELIRINFEV | Ever told had inflammatory or irritable bowel | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | X | . | . | BOWELIRINFEV | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELIRINFEV | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELIRREV | Ever had irritable bowel syndrome | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELIRREV | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELIRREV | . | . | . | . | . | . | . | . | . | . | . | . | |
| BOWELNONDEV | Ever had bowel trouble other than diarrhea | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELNONDEV | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BOWELNONDEV | . | . | . | . | . | . | . | . | . | . | . | . | |
| BP1WK | Back pain lasted for a week, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BP1WK | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BP1WK | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACC | Back pain resulted from an accident, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACC | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACC | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACCDAY | Accident caused back pain last year: Day | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCDAY | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCDAY | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACCMO | Accident caused back pain last year: Month | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCMO | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCMO | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACCRCWK | Accident caused back pain happened at the most-recent-held job | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCRCWK | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCRCWK | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACCWK | Accident caused back pain happened at work | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCWK | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCWK | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPACCYR | Accident caused back pain last year: Year | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCYR | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPACCYR | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPANTSY | Behavior Index: Child can't sit still | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPANTSY | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPANTSY | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPANXIOUS | Behavior Index: Child fearful or anxious | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPANXIOUS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPANXIOUS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPARGUES | Behavior Index: Child argues too much | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPARGUES | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPARGUES | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPATTENTN | Behavior Index: Child demands attention | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPATTENTN | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPATTENTN | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPBREAKS | Behavior Index: Child breaks things | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPBREAKS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPBREAKS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPBUTTOCK | Back pain spread to buttocks | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPBUTTOCK | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPBUTTOCK | . | . | . | . | . | . | . | . | . | . | . | . | |
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Variable
|
Variable Label
|
Type |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
09 |
08 |
07 |
06 |
05 |
04 |
03 |
02 |
01 |
00 |
Variable
|
99 |
98 |
97 |
96 |
95 |
94 |
93 |
92 |
91 |
90 |
89 |
88 |
87 |
86 |
85 |
84 |
83 |
82 |
81 |
80 |
79 |
78 |
77 |
76 |
75 |
Variable
|
74 |
73 |
72 |
71 |
70 |
69 |
68 |
67 |
66 |
65 |
64 |
63 |
|
| BPCHEATLIE | Behavior Index: Child cheats or tells lies | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCHEATLIE | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCHEATLIE | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCHECK12M | Times blood pressure checked, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCHECK12M | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCHECK12M | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCLASSWK | Class of worker at the time the accident that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCLASSWK | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCLASSWK | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCLINGY | Behavior Index: Child clings to adults | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCLINGY | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCLINGY | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCONFLKID | Behavior Index: Child has trouble getting along with other children | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCONFLKID | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCONFLKID | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCONFLTECH | Behavior Index: Child has trouble getting along with teachers | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCONFLTECH | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCONFLTECH | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCONFUSED | Behavior Index: Child easily confused | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCONFUSED | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCONFUSED | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPCRIES | Behavior Index: Child cries a lot | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPCRIES | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPCRIES | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDAYS | Number of days having back pain, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDAYS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDAYS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDEPEND | Behavior Index: Child dependent on others | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDEPEND | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPDEPEND | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDEPRESS | Behavior Index: Child unhappy, sad, or depressed | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDEPRESS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPDEPRESS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDISOBEYH | Behavior Index: Child is disobedient at home | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDISOBEYH | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPDISOBEYH | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDISOBEYS | Behavior Index: Child is disobedient at school | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDISOBEYS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPDISOBEYS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDKSUM | Index of behavior problems: Don't know | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDKSUM | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDKSUM | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDURTN | Length of time bothered by back pain: number of units | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDURTN | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDURTN | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPDURTP | Length of time bothered by back pain: time units | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDURTP | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPDURTP | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPHANGTM | Behavior Index: Child hangs out with trouble makers | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPHANGTM | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPHANGTM | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPHISTRUNG | Behavior Index: Child is high strung | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPHISTRUNG | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPHISTRUNG | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPIMPULSE | Behavior Index: Child is impulsive or acts without thinking | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPIMPULSE | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPIMPULSE | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPIND | Detailed industry classification of job where accident that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPIND | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPIND | . | . | . | . | . | . | . | . | . | . | . | . | |
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|
Variable
|
Variable Label
|
Type |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
09 |
08 |
07 |
06 |
05 |
04 |
03 |
02 |
01 |
00 |
Variable
|
99 |
98 |
97 |
96 |
95 |
94 |
93 |
92 |
91 |
90 |
89 |
88 |
87 |
86 |
85 |
84 |
83 |
82 |
81 |
80 |
79 |
78 |
77 |
76 |
75 |
Variable
|
74 |
73 |
72 |
71 |
70 |
69 |
68 |
67 |
66 |
65 |
64 |
63 |
|
| BPINT | Bothered by back pain on the day of the interview | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPINT | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPINT | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPLASTN | Time last had back pain: number of units | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLASTN | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLASTN | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPLASTP | Time last had back pain: time units | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLASTP | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLASTP | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPLEG | Back pain spread to lower legs or feet | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLEG | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLEG | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPLONGESTP | Longest period had back pain every day | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLONGESTP | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPLONGESTP | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPMADECW | Ever made major changes in work activities because of back pain | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPMADECW | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPMADECW | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPMEAN | Behavior Index: Child bullies or is cruel or mean | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPMEAN | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPMEAN | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPMOODY | Behavior Index: Child has sudden changes in mood or feeling | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPMOODY | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPMOODY | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPNOCONC | Behavior Index: Child can't concentrate | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPNOCONC | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPNOCONC | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPNOTSORRY | Behavior Index: Child does not seem to feel sorry after misbehaving | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPNOTSORRY | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPNOTSORRY | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPOBSESS | Behavior Index: Child has one-track mind, obsesses | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOBSESS | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPOBSESS | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPOCC | Detailed occupation classification of job where accident that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOCC | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOCC | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPOFTRUSUM | Index of behavior problems: Often true | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOFTRUSUM | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOFTRUSUM | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPOTHCAUSE | Cause of back pain besides accident and repeated activities | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOTHCAUSE | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPOTHCAUSE | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPPARANOID | Behavior Index: Child feels others out to get him/her | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPPARANOID | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | X | . | . | . | . | . | . | BPPARANOID | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPPART | Part of back that bothered the most because of back pain, past 12 months | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPPART | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPPART | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPRACT | Back pain caused by repeated activities | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACT | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACT | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPRACTCW | Class of worker at the time repeated activities that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTCW | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTCW | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPRACTIND | Detailed industry classification of job where repeated activities that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTIND | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTIND | . | . | . | . | . | . | . | . | . | . | . | . | |
| BPRACTOCC | Detailed occupation classification of job where repeated activities that caused back pain happened | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTOCC | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | . | BPRACTOCC | . | . | . | . | . | . | . | . | . | . | . | . | |