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. Author manuscript; available in PMC: 2024 Apr 4.
Published in final edited form as: Eat Behav. 2023 Apr 4;49:101722. doi: 10.1016/j.eatbeh.2023.101722

Table 3.

Moderated regression analyses assessing main and interactive effects of the impact of time spent on social media, total number of social media accounts used, and exposure to body positivity/negativity content on body image and disordered eating behaviors.

Step Body Appreciation Scale
B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df
1 Gender 0.48 ((0.14, 0.81) 0.18 2.80* 0.15 0.15 20.00*,# 2232 Gender 0.48 (0.13, 0.82) 0.19 2.77* 0.12 0.12 16.00*,# 2225
BMI −0.07 (−0.10, −0.04) −0.30 −4.89*,# BMI −0.06 (−0.09, −0.03) −0.26 −4.21*,#
2 Min SM −0.001 (−0.003, 0.000) −0.13 −1.57 0.16 0.01 1.66 2230 # SM −0.06 (−0.12, 0.000) −0.15 −1.97* 0.14 0.01 1.54 2223
BP −0.24 (−0.59, 0.12) −0.09 −1.33 BP −0.21 (−0.58, 0.15) −0.08 −1.14
3 Min SM × BP 0.001 (−0.001, 0.003) 0.08 0.93 0.16 0.003 0.86 1229 # SM × BP 0.08 (−0.02, 0.19) 0.12 1.54 0.15 0.01 2.37 1222
Step Fear of Negative Appearance Evaluation Scale
B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df
1 Gender −0.79 (−1.10, 0.48) −0.32 −4.95*,# 0.18 0.18 24.43*,# 2227 Gender −0.80 (−1.12, −0.49) −0.32 −5.02*,# 0.17 0.17 23.15*,# 2221
BMI 0.04 (0.01, 0.06) 0.18 2.96*,# BMI 0.03 (0.003, 0.06) 0.13 2.19*
2 Min SM 0.002 (0.000, 0.003) 0.16 2.09* 0.20 0.03 3.86* 2225 # SM 0.07 (0.02, 0.13) 0.19 2.16* 0.22 0.05 6.70*,# 2219
BP 0.42 (0.09, 0.75) 0.16 2.49* BP 0.30 (−0.04, 0.64) 0.11 1.74
3 Min SM × BP −0.002 (−0.004, 0.001) −0.12 −1.52 0.21 0.01 2.30 1224 # SM × BP −0.02 (−0.12, 0.08) −0.03 −0.37 0.22 0.000 0.14 1218
Step Binge eating frequency
B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df
1 Gender −1.23 (−2.55, 0.08) −0.12 −1.84 0.14 0.14 18.56*,# 2233 Gender −1.60 (−2.89, −0.30) −0.16 −2.42* 0.11 0.11 13.89*,# 2226
BMI 0.28 (0.18, 0.39) 0.32 5.19*,# BMI 0.23 (0.12, 0.34) 0.25 4.02*,#
2 Min SM 0.004 (−0.002, 0.01) 0.09 1.16 0.15 0.01 1.78 2.231 # SM 0.22 (−0.004, 0.45) 0.15 1.94* 0.13 0.02 2.24 2224
BP 1.10 (−0.28, 2.49) 0.10 1.57 BP 0.60 (−0.80, 2.00) 0.06 0.85
3 Min SM × BP −0.003 (−0.01, 0.01) −0.05 −0.54 0.15 0.001 0.30 1230 # SM × BP −0.15 (−0.55, 0.25) −0.06 −0.74 0.13 0.002 0.54 1223
Step Frequency of vomiting
B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df
1 Gender −0.17 (−0.76, 0.43) −0.04 −0.55 0.02 0.02 2.05 2233 Gender −0.25 (−0.87, 0.37) −0.06 −0.80 0.02 0.02 1.94 2226
BMI 0.02 (−0.03, 0.07) 0.06 0.89 BMI 0.03 (−0.02, 0.09) 0.08 1.26
2 Min SM 0.001 (−0.002, 0.004) 0.05 0.62 0.04 0.03 3.17* 2231 # SM −0.01 (−0.12, 0.10)0 .02 (−0.18, 0.21) −0.02 −0.22 0.03 0.01 1.22 2224
BP 0.40 (−0.22, 1.03) 0.09 1.27 BP 0.51 (−0.15, 1.18) 0.11 1.52
3 Min SM × BP 0.03 (−0.001, 0.01) 0.12 1.41 0.05 0.01 1.98 1230 # SM × BP 0.02 (−0.18, 0.21) 0.01 0.17 0.03 0.000 0.03 1223
Step Frequency of laxative use
B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df B (95 % CI) β t R2 ΔR (Dean, 2021) ΔF df
1 Gender −0.39 (−1.13, 0.35) −0.07 −1.03 0.03 0.03 4.06* 2233 Gender −0.53 (−1.27, 0.21) −0.10 −1.41 0.05 0.05 6.44*,# 2226
BMI 0.05 (−0.01, 0.11) 0.12 1.77 BMI 0.09 (0.02, 0.15) 0.18 2.73*
2 Min SM 0.001 (−0.003, 0.004) 0.03 0.35 0.05 0.02 2.04 2231 # SM 0.05 (−0.08, 0.18) 0.06 0.76 0.07 0.01 1.33 2224
BP 0.64 (−0.14, 1.42) 0.11 1.62 BP 0.58 (−0.22, 1.37) 0.10 1.44
3 Min SM × BP 0.002 (−0.004, 0.01) 0.06 0.64 0.05 0.002 0.40 1230 # SM × BP −0.05 (−0.28, 0.18) −0.03 −0.42 0.07 0.001 0.18 1223

NOTE: B, β and t reflect values from the final regression equation; BMI = body mass index, Min SM = minutes spent daily on social media, #SM = total number of social media accounts, BP = exposure to body positivity content.

*

p < .05 (Bonferroni adjusted).

#

p < .003 (Bonferroni adjusted).