IPUMS NHIS: vars by group: behavior

An "X" indicates the variable is available for the listed sample.

Add to cart	Variable	Variable Label	Type	usa 2024	usa 2023	usa 2022	usa 2021	usa 2020	usa 2019	usa 2018	usa 2017	usa 2016	usa 2015	usa 2014	usa 2013	usa 2012	usa 2011	usa 2010	usa 2009	usa 2008	usa 2007	usa 2006	usa 2005	usa 2004	usa 2003	usa 2002	usa 2001	usa 2000	Variable	usa 1999	usa 1998	usa 1997	usa 1996	usa 1995	usa 1994	usa 1993	usa 1992	usa 1991	usa 1990	usa 1989	usa 1988	usa 1987	usa 1986	usa 1985	usa 1984	usa 1983	usa 1982	usa 1981	usa 1980	usa 1979	usa 1978	usa 1977	usa 1976	usa 1975	Variable	usa 1974	usa 1973	usa 1972	usa 1971	usa 1970	usa 1969	usa 1968	usa 1967	usa 1966	usa 1965	usa 1964	usa 1963
Work Exposure Variables -- PERSON (Group continued on next page...) [top]
Add to cart	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
	TIMECJTP	Length of time working for current job: time units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMECJTP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMECJTP	.	.	.	.	.	.	.	.	.	.	.	.
	AGECJ	Age when started current job	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	AGECJ	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	AGECJ	.	.	.	.	.	.	.	.	.	.	.	.
	JOBREQSTREN	Job required strenuous physical activities	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQSTREN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQSTREN	.	.	.	.	.	.	.	.	.	.	.	.
	TIMESTRENTN	Length of time in strenuous activities at work: number of units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMESTRENTN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMESTRENTN	.	.	.	.	.	.	.	.	.	.	.	.
	TIMESTRENTP	Length of time in strenuous activities at work: time units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMESTRENTP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMESTRENTP	.	.	.	.	.	.	.	.	.	.	.	.
	JOBREQBTR	Job required repeated bending, twisting, or reaching	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQBTR	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQBTR	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEBTRTN	Length of time bending/twisting/reaching at work: number of units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTRTN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTRTN	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEBTRTP	Length of time bending/twisting/reaching at work: time units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTRTP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTRTP	.	.	.	.	.	.	.	.	.	.	.	.
	JOBREQBTHAND	Job required bending or twisting hands/wrists	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQBTHAND	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQBTHAND	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEBTHANDTN	Length of time bending or twisting hands/wrists at work: number of units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTHANDTN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTHANDTN	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEBTHANDTP	Length of time bending or twisting hands/wrists at work: time units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTHANDTP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEBTHANDTP	.	.	.	.	.	.	.	.	.	.	.	.
	JOBREQVIBM	Job required working with vibrating machinery	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQVIBM	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	JOBREQVIBM	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEVIBMATN	Length of time working with vibrating machinery at work: number of units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEVIBMATN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEVIBMATN	.	.	.	.	.	.	.	.	.	.	.	.
	TIMEVIBMATP	Length of time working with vibrating machinery at work: time units	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEVIBMATP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	TIMEVIBMATP	.	.	.	.	.	.	.	.	.	.	.	.
	SKINSOLDEG	Skin exposures past 12 months: exposed to solvents or degreasers	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINSOLDEG	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINSOLDEG	.	.	.	.	.	.	.	.	.	.	.	.
	SKINPETRO	Skin exposures past 12 months: exposed to petroleum products	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPETRO	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPETRO	.	.	.	.	.	.	.	.	.	.	.	.
	SKINCLEANSOL	Skin exposures past 12 months: exposed to soaps, detergents, cleaning solutions	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINCLEANSOL	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINCLEANSOL	.	.	.	.	.	.	.	.	.	.	.	.
	SKINWRKFL	Skin exposures past 12 months: exposed to cutting oils, machine coolants, or metal working fluids	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINWRKFL	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINWRKFL	.	.	.	.	.	.	.	.	.	.	.	.
	SKINPAINT	Skin exposures past 12 months: exposed to paints, varnishes, lacquers, other coatings	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPAINT	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPAINT	.	.	.	.	.	.	.	.	.	.	.	.
	SKINGLUES	Skin exposures past 12 months: exposed to glues, pastes, other adhesives	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINGLUES	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINGLUES	.	.	.	.	.	.	.	.	.	.	.	.
Add to cart	Variable	Variable Label	Type	usa 2024	usa 2023	usa 2022	usa 2021	usa 2020	usa 2019	usa 2018	usa 2017	usa 2016	usa 2015	usa 2014	usa 2013	usa 2012	usa 2011	usa 2010	usa 2009	usa 2008	usa 2007	usa 2006	usa 2005	usa 2004	usa 2003	usa 2002	usa 2001	usa 2000	Variable	usa 1999	usa 1998	usa 1997	usa 1996	usa 1995	usa 1994	usa 1993	usa 1992	usa 1991	usa 1990	usa 1989	usa 1988	usa 1987	usa 1986	usa 1985	usa 1984	usa 1983	usa 1982	usa 1981	usa 1980	usa 1979	usa 1978	usa 1977	usa 1976	usa 1975	Variable	usa 1974	usa 1973	usa 1972	usa 1971	usa 1970	usa 1969	usa 1968	usa 1967	usa 1966	usa 1965	usa 1964	usa 1963
Add to cart	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
	SKINACIDS	Skin exposures past 12 months: exposed to acids or alkali	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINACIDS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINACIDS	.	.	.	.	.	.	.	.	.	.	.	.
	SKINPEST	Skin exposures past 12 months: exposed to pesticides, insecticides herbicides, fungicides, or other fumigants	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPEST	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPEST	.	.	.	.	.	.	.	.	.	.	.	.
	SKINFOOD	Skin exposures past 12 months: exposed to foods or food products	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINFOOD	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINFOOD	.	.	.	.	.	.	.	.	.	.	.	.
	SKINPLANTS	Skin exposures past 12 months: exposed to plants, trees, shrubs	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPLANTS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINPLANTS	.	.	.	.	.	.	.	.	.	.	.	.
	SKINSUBST	Skin exposures past 12 months: exposed to any other substances that could irritate skin	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINSUBST	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	SKINSUBST	.	.	.	.	.	.	.	.	.	.	.	.
	BP1WK	Back pain lasted for a week, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BP1WK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BP1WK	.	.	.	.	.	.	.	.	.	.	.	.
	BPDAYS	Number of days having back pain, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPDAYS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPDAYS	.	.	.	.	.	.	.	.	.	.	.	.
	BPWKDAYS	Number of work days missed because of back pain, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWKDAYS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWKDAYS	.	.	.	.	.	.	.	.	.	.	.	.
	BPPART	Part of back that bothered the most because of back pain, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPPART	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPPART	.	.	.	.	.	.	.	.	.	.	.	.
	BPBUTTOCK	Back pain spread to buttocks	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPBUTTOCK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPBUTTOCK	.	.	.	.	.	.	.	.	.	.	.	.
	BPTHIGH	Back pain spread to thighs	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPTHIGH	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPTHIGH	.	.	.	.	.	.	.	.	.	.	.	.
	BPLEG	Back pain spread to lower legs or feet	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPLEG	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPLEG	.	.	.	.	.	.	.	.	.	.	.	.
	BPACC	Back pain resulted from an accident, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACC	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACC	.	.	.	.	.	.	.	.	.	.	.	.
	BPACCMO	Accident caused back pain last year: Month	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCMO	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCMO	.	.	.	.	.	.	.	.	.	.	.	.
	BPACCDAY	Accident caused back pain last year: Day	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCDAY	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCDAY	.	.	.	.	.	.	.	.	.	.	.	.
	BPACCYR	Accident caused back pain last year: Year	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCYR	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCYR	.	.	.	.	.	.	.	.	.	.	.	.
	BPACCWK	Accident caused back pain happened at work	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCWK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCWK	.	.	.	.	.	.	.	.	.	.	.	.
	BPACCRCWK	Accident caused back pain happened at the most-recent-held job	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCRCWK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPACCRCWK	.	.	.	.	.	.	.	.	.	.	.	.
	BPIND	Detailed industry classification of job where accident that caused back pain happened	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPIND	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPIND	.	.	.	.	.	.	.	.	.	.	.	.
	BPOCC	Detailed occupation classification of job where accident that caused back pain happened	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPOCC	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPOCC	.	.	.	.	.	.	.	.	.	.	.	.
Add to cart	Variable	Variable Label	Type	usa 2024	usa 2023	usa 2022	usa 2021	usa 2020	usa 2019	usa 2018	usa 2017	usa 2016	usa 2015	usa 2014	usa 2013	usa 2012	usa 2011	usa 2010	usa 2009	usa 2008	usa 2007	usa 2006	usa 2005	usa 2004	usa 2003	usa 2002	usa 2001	usa 2000	Variable	usa 1999	usa 1998	usa 1997	usa 1996	usa 1995	usa 1994	usa 1993	usa 1992	usa 1991	usa 1990	usa 1989	usa 1988	usa 1987	usa 1986	usa 1985	usa 1984	usa 1983	usa 1982	usa 1981	usa 1980	usa 1979	usa 1978	usa 1977	usa 1976	usa 1975	Variable	usa 1974	usa 1973	usa 1972	usa 1971	usa 1970	usa 1969	usa 1968	usa 1967	usa 1966	usa 1965	usa 1964	usa 1963
Add to cart	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
	BPCLASSWK	Class of worker at the time the accident that caused back pain happened	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPCLASSWK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPCLASSWK	.	.	.	.	.	.	.	.	.	.	.	.
	BPRACT	Back pain caused by repeated activities	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACT	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACT	.	.	.	.	.	.	.	.	.	.	.	.
	BPWRACT	Locations where repeated activities that caused back pain were performed	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWRACT	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWRACT	.	.	.	.	.	.	.	.	.	.	.	.
	BPRACTRW	Back pain caused by repeated activities at work happened at most-recent-held job, past 12 months	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACTRW	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACTRW	.	.	.	.	.	.	.	.	.	.	.	.
	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	.	.	.	.	.	.	.	.	.	.	.	.
	BPRACTCW	Class of worker at the time repeated activities that caused back pain happened	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACTCW	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPRACTCW	.	.	.	.	.	.	.	.	.	.	.	.
	BPOTHCAUSE	Cause of back pain besides accident and repeated activities	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPOTHCAUSE	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPOTHCAUSE	.	.	.	.	.	.	.	.	.	.	.	.
	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	.	.	.	.	.	.	.	.	.	.	.	.
	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	.	.	.	.	.	.	.	.	.	.	.	.
	BPWHEN	Year when first had back pain for at least a week	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWHEN	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPWHEN	.	.	.	.	.	.	.	.	.	.	.	.
	BPYRS	Number of years had back pain for at least a week	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPYRS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPYRS	.	.	.	.	.	.	.	.	.	.	.	.
	BPLONGESTP	Longest period had back pain every day	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPLONGESTP	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPLONGESTP	.	.	.	.	.	.	.	.	.	.	.	.
	BPSTOPWK	Ever stopped working or changed job because of back pain	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPSTOPWK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPSTOPWK	.	.	.	.	.	.	.	.	.	.	.	.
	BPMADECW	Ever made major changes in work activities because of back pain	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	BPMADECW	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	BPMADECW	.	.	.	.	.	.	.	.	.	.	.	.
	HANDEDNESS	Left handed or right handed (Occupational Health supplement)	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	HANDEDNESS	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	HANDEDNESS	.	.	.	.	.	.	.	.	.	.	.	.
	HANDEDWK	Use left or right hand at work	P	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	HANDEDWK	.	.	.	.	.	.	.	.	.	.	.	X	.	.	.	.	.	.	.	.	.	.	.	.	.	HANDEDWK	.	.	.	.	.	.	.	.	.	.	.	.

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0	samples