Table 3.

Associations between the use of social networking sites and the perception and intentions regarding body weight among adolescent women

	Unadjusted†		Adjusted†, ‡
	Daily use of 2 h or less OR/RRR (95% CI)§	Daily use of more than 2 h OR/RRR (95% CI)	Daily use of 2 h or less OR/RRR (95% CI)	Daily use of more than 2 h OR/RRR (95% CI)
Dissatisfaction with body weight¶
No	1	1	1	1
Yes	1.05 (0.70–1.58)	2.18 (1.45–3.29)***	1.05 (0.68–1.62)	2.02 (1.30–3.16)**
Perceived body weight∥
About right weight	1	1	1	1
Underweight	0.70 (0.35–1.40)	1.55 (0.81–2.99)	0.81 (0.39–1.67)	1.67 (0.84–3.32)
Overweight	1.18 (0.76–1.83)	2.40 (1.51–3.83)***	1.13 (0.70–1.84)	2.20 (1.34–3.60)**
Attitude about body weight∥
Not doing anything	1	1	1	1
Trying to lose weight	1.58 (0.97–2.57)	2.95 (1.95–4.49)***	1.45 (0.86–2.45)	2.51 (1.62–3.90)***
Trying to keep from gaining weight	1.48 (0.94–2.35)	1.87 (1.17–2.99)**	1.31 (0.81–2.11)	1.61 (0.99–2.61)
Trying to gain weight	1.33 (0.60–2.92)	2.25 (0.98–5.17)	1.56 (0.71–3.41)	2.31 (0.99–5.37)

^† The reference category is those who reported infrequent or no use of social networking sites.

^‡ Models adjusted for age, ethnicity, subjective socioeconomic status and parental education.

^§ OR if binary logistic regression and RRR if multinomial logistic regression.

^¶ Binary logistic regression (data are shown as OR).

^∥ Multinomial logistic regression (data are shown as RRR).

^*** p < 0.001,

^** p < 0.01,

^* p < 0.05.

OR, odds ratio; RRR, relative risk ratio; CI, confidence interval.