Table 1.

Weighted Sample Characteristics, Health and Retirement Study (N = 16,606).

Characteristic	% or M (SD)	Characteristic		% or M (SD)
Demographic characteristicsa		Labor force participation changeb
Age	54.2 (3.1)	No change		40.1
Female	49.4	Worked less		51.9
Educational attainment		Worked more		25.7
Less than high school	16.3	Cigarettes smoked per day among smokers		17.4 (11.8)
High school degree	34.2	Reported dead (1992–2010)
Some college	24.8	Number of completed consecutive interviewsc		12.9
College degree	24.8
Race-ethnicity		10		20.0
Non-Hispanic white	79.5	9		12.4
Non-Hispanic black	10.8	8		9.3
Hispanic/other race	9.8	7		13.6
Partnership status		6		6.5
Partnered	74.8	5		5.9
Unpartnered	25.2	4		17.5
Health statusa		3		8.3
Number existing chronic conditions		2		6.2
None	56.4	1		0
One	30.2	Health behavior continuity and change
Two	10.2	Smoking behavior summary
Three or more	3.2	Nonsmoker throughout study		71.5
Self-rated health		Smoker throughout study		13.7
Good, very good, excellent	79.1	Stops smoking once		7.9
Fair or poor	20.9	Starts smoking once		1.4
Obese (BMI ≥ 30)	28.0	Starts and stops smoking		5.5
Any mobility limitation	32.6	Total		100
Health changesb		Smoking
Number new chronic conditions		% smokes during study periodd		28.4
None	48.7	% stops smoking		13.4
One	31.6	% smokes at baseline		25.2
Two	14.2	Physical activity behavior summary
Three or more	5.5	Always physically active		6.8
Type of new chronic conditione		Never physically active		30.2
Hypertension	25.9	Stops physical activity once		13.1
Heart disease	14.8	Starts physical activity once		8.6
Diabetes	13.4	Starts and stops physical activity		41.3
Cancer	10.2	Total		100
Lung disease	7.8	Physical activity
Stroke	5.6	% inactive during studyf		93.1
Labor force participation at baseline		% starts physical activity		49.9
Not working	25.6	% physically active at baseline		31.8
Works part-time	13.2
Works full-time	61.2

^aMeasured at first interview.

^bRespondents may have experienced more than one change (1992–2010); therefore, changes do not sum to 100 percent.

^cUnweighted for sample description.

^dThe respondents at risk of smoking cessation are all except those who are nonsmokers throughout the study.

^eReported throughout study period (1992–2010).

^fThe respondents at risk of starting physically activity are all except those who are always physically active.