Table 1.

Time spent using social networking sites by demographic characteristics

	Total sample (N = 4,468) %	Infrequent or no use (N = 927) %	Daily use of 2 h or less (N = 2,359) %	Daily use of more than 2 h (N = 1,182) %
Total		17.4	54.6	28.0
Sex***, †
Men	51.5	21.7	58.4	19.9
Women	48.5	12.8	50.6	36.6
Ethnicity**, †
Caucasian	58.8	14.9	58.4	26.8
African–American	7.1	19.9	40.4	39.8
East/Southeast Asian	10.4	20.9	50.0	29.1
South Asian	11.4	22.1	53.9	24.0
Other	12.3	20.9	49.4	29.7
Subjective SES†
Low	31.3	17.7	50.6	31.6
High	68.7	17.3	56.4	26.3
Parental education***, †
University degree	22.7	18.8	58.4	22.7
Some college/university	27.3	16.5	57.5	26.0
High school or less	27.4	12.7	52.7	34.6
Do not know	22.5	22.7	49.6	27.7
Age***, ‡ mean (years) ± SD	15.3 ± 1.9	14.5 ± 1.7	15.4 ± 1.9	15.6 ± 1.7

Data are shown as column or row % (depending on total sample or split), unless otherwise indicated.

^† Pearson chi‐square adjusted for the survey design and transformed into an F‐statistic.

^‡ Adjusted Wald test.

^*** p < 0.001,

^** p < 0.01,

^* p < 0.05 with time spent using social networking sites.

SES, socioeconomic status; SD, standard deviation.