Table 1.

Descriptive Statistics of the Sample of 2,625 Adolescents in the California Health Interview Survey, 2012-2013

Socio-Demographic Characteristic	2012 (%) N = 1,464	2013 (%) N = 1,201	Combined 2012/2013 Data (%)N = 2,665	Test of Difference Between Years (χ², p-value)
Age M (SE)^a	14.6 (0.1)	14.5 (0.1)	14.5 (0.1)	____
Aged 12-14	48.7%	49.0%	48.8%	χ² = 0.10, p = 0.92
Aged 15-17	51.4%	51.0%	51.2%	χ² = 0.10, p = 0.92
Annual Household Income
0-99% of FPL	23.1%	18.2%	20.8%	χ² = 2.16, p = 0.03
100-199% of FPL	24.8%	25.1%	24.7%	χ² = 0.11, p = 0.91
200-299% of FPL	12.7%	11.8%	12.5%	χ² = 0.40, p = 0.69
≥300% of FPL	39.4%	44.8%	42.0%	χ² = 2.26, p = 0.02
Gender^b
Boys	51.2%	51.2%	51.2%	_____
Girls	48.8%	48.8%	48.8%	_____
Race/Ethnicity
African American/Black	4.4%	6.2%	5.3%	χ² = 1.9, p = 0.10
Asian	11.4%	9.9%	10.7%	χ² = 0.94, p = 0.35
Latino	48.1%	47.2%	47.6%	χ² = 0.34, p = 0.73
White	30.8%	32.2%	31.5%	χ² = 0.71, p = 0.48
Two or More Races/Ethnicities	5.3%	4.5%	4.9%	χ² = 0.77, p = 0.44
BMI
Underweight	2.8%	2.1%	2.5%	χ² = 0.90, p = 0.37
Normal Weight	67.0%	64.1%	64.5%	χ² = 0.97, p = 0.33
Overweight	14.9%	19.4%	16.9%	χ² = 2.11, p = 0.04
Obese	15.3%	14.4%	16.2%	χ² = 0.39, p = 0.70
School Level
Elementary	4.1%	5.5%	4.1%	χ² = 0.94, p = 0.35
Middle	28.7%	27.9%	29.0%	χ² = 0.43, p = 0.67
High	56.7%	54.8%	55.1%	χ² = 0.87, p = 0.38
Other	10.5%	11.6%	11.7%	χ² = 0.65, p = 0.52

The age range of the sample in both years is 12-17 years, based on the adolescent interview eligibility criteria.

Because gender was used to create weights for the present dataset, the SE for gender is zero and the percentages remained the same in each set of weights; thus, no inferential statistical test was performed between years.