Table 2.

Results from multinomial logistic regression for frequency and daily duration of social media use.

Variable	Crude, relative risk ratio (95% CI)	p-value	Adjusted, relative risk ratio (95% CI)	p-value
Frequency of social media use	Base category (daily or less)	N/A	Base category (daily or less)	N/A
Many times a day, low SES (0–4)	1.10 (0.76–1.58)	0.613	1.07 (0.74–1.55)	0.711
Almost constantly, low SES (0–4)	1.40 (1.01–1.95)	0.045	1.21 (0.85–1.74)	0.296
Many times a day, medium SES (5–7)	1.05 (0.89–1.28)	0.647	0.99 (0.81–1.21)	0.923
Almost constantly, medium SES (5–7)	1.03 (0.81–1.30)	0.833	0.93 (0.73–1.19)	0.566
Daily duration of social media use	Base category (<2 h)	N/A	Base category (<2 h)	N/A
2–3 hours, low SES (0–4)	1.24 (0.86–1.78)	0.250	1.09 (0.76–1.56)	0.642
4–5 hours, low SES (0–4)	1.81 (1.27–2.58)	0.001	1.44 (1.00–2.07)	0.052
>5 hours, low SES (0–4)	1.98 (1.31–2.98)	0.001	1.52 (1.01–2.30)	0.046
2–3 hours, medium SES (5–7)	1.01 (0.85–1.20)	0.904	0.94 (0.79–1.12)	0.501
4–5 hours, medium SES (5–7)	1.18 (0.96–1.45)	0.122	1.04 (0.84–1.28)	0.726
>5 hours, medium SES (5–7)	1.15 (0.94–1.42)	0.176	1.02 (0.83–1.25)	0.848

Subjective socioeconomic status as independent variable [reference group; high SES (8–10)] use of social media as dependent variable. Crude associations and adjusted for age and gender, country of birth and type of study. N = 3,415.

95% CI, 95% Confidence interval; SES, Socioeconomic status. Adjusted: Adjusted for age and gender, country of birth and type of study.

Bold indicates significant estimates.

Multiple-imputation estimates based on multinomial logistic regression models while accounting for clustering (school and grade level) of data.