Table 4.

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

	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	1.04 (0.75–1.43)	1.26 (0.78–2.02)	1.01 (0.73–1.39)	1.14 (0.69–1.88)
Perceived body weight∥
About right weight	1	1	1	1
Underweight	1.64 (0.99–2.70)	1.86 (1.13–3.04)*	1.55 (0.94–2.54)	1.65 (0.99–2.76)
Overweight	0.71 (0.49–1.01)	0.93 (0.46–1.85)	0.68 (0.47–0.98)*	0.87 (0.43–1.73)
Attitude about body weight ∥
Not doing anything	1	1	1	1
Trying to lose weight	1.04 (0.65–1.66)	1.57 (0.78–3.16)	1.11 (0.70–1.76)	1.75 (0.87–3.51)
Trying to keep from gaining weight	0.75 (0.48–1.17)	0.91 (0.52–1.59)	0.77 (0.47–1.25)	0.95 (0.51–1.75)
Trying to gain weight	1.30 (0.87–1.93)	1.67 (0.97–2.86)	1.05 (0.70–1.59)	1.33 (0.74–2.41)

^† 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 < 0.05.

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