Table 1.

Variables, Original Survey Questions, and Recoded Factors Used in Analysis of 2003–2004 Data from National Survey of Children's Health

Variable	National Survey of Children's Health Question	Recoded for Descriptive Analysis
Household income as percent of FPL	Two variables were used to determine a household's poverty status: the number of people residing in a household and the household's income during the prior year.	≤150% FPL
Household income as percent of FPL		>150% FPL
Child's nonschool computer use	On an average school day, about how many hours does [the child] use a computer for purposes other than schoolwork?	<1 hr
		between 1 and 2 hr
		≥3 hours
Child's television use	On an average school day, about how many hours does [the child] usually watch television, watch videos, or play video games?	<1 hr
		between 1 and 2 hr
		≥3 hours
Child's physical activity	During the past week, on how many days did [the child] exercise or participate in physical activity for at least 20 minutes that made [him/her] sweat and breathe hard, such as basketball, soccer, running, swimming laps, fast bicycling, fast dancing, or similar aerobic activities?	Yes (≥5 days coded as Yes for getting minimum amounts of moderate physical activity)
Child's physical activity		No (<5 days coded as No for not getting minimum amounts of moderate physical activity)
Sports team participant	During the past 12 months, was [the child] on a sports team or did [he/she] take sports lessons after school or on weekends?	Yes
Sports team participant		No
Have health plan	Does [the child] have any kind of health care coverage, including health insurance, prepaid plans such as HMOs, or government plans such as Medicaid?	Yes
Have health plan		No
Received all preventive care during the past 12 mo	During the past 12 months/Since [the child's] birth, did [he/she] visit [his/her] personal doctor or nurse for preventive care?	Yes
Received all preventive care during the past 12 mo		No
	(Preventive care visits include things like a well-child check-up, a routine physical exam, immunizations, or health screening tests.)
Have PCP	Do you have one or more people you think of as [the child's] personal doctor or nurse?	Yes
Have PCP		No
Race	Is [the child] white, African-American, American Indian, Alaskan native, Asian, or native Hawaiian or other Pacific Islander?	white
Race		Not white
Sex	Is [the child] male or female?	Male
		Female
Father/mother meeting at least recommended levels of moderate physical activity?	During the past week, on how many days did you exercise or participate in physical activity for at least 20 minutes that made you sweat and breathe hard, such as basketball, soccer, running, swimming laps, fast bicycling, fast dancing, or similar aerobic activities?	Yes (≥5 days coded as Yes for getting minimum amounts of moderate physical activity)
		No (<5 days coded as No for not getting minimum amounts of moderate physical activity)

FPL, Federal poverty level; HMO, health maintenance organization.