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. 2021 Jun 8;18(12):6212. doi: 10.3390/ijerph18126212

Table 4.

Results from multiple regression analysis predicting self-reported loneliness and social well-being by type of smartphone communication app use time (average of past seven days) of 359 German adults.

Predictors Loneliness (M3) Social Well-Being (M4)
B (SE) β p B (SE) β p
Intercept 7.20 (0.66) <.001 60.54 (5.63) <0.001
Social media 0.06 (0.13) 0.02 0.63 −0.01 (0.93) <0.01 0.99
Instant messenger 0.27 (0.18) 0.09 0.15 −0.32 (1.07) −0.01 0.77
Phone call 0.04 (0.13) 0.01 0.72 1.24 (0.46) 0.05 0.008
Text messages 0.18 (0.30) 0.06 0.56 1.50 (1.36) 0.08 0.27
Age 0.19 (0.99) 0.06 0.84 −17.73 (7.04) −0.76 0.01
Age2 −0.53 (0.98) −0.17 0.59 19.57 (6.87) 0.85 0.005
Sex
 Male vs. female 0.01 (0.34) <0.01 0.97 −3.32 (2.38) −0.08 0.16
Mental disorder
 No vs. yes 0.94 (0.34) 0.15 0.005 −9.16 (2.39) −0.21 <0.001
Chronic disease
 No vs. yes 1.04 (0.33) 0.17 0.002 −5.51 (2.27) −0.13 0.02
COVID-19 infection
 No vs. yes −1.42 (1.16) −0.06 0.22 21.41 (7.06) 0.13 0.003
Education
 Low vs. moderate 0.41 (0.65) 0.06 0.52 9.03 (5.26) 0.18 0.08
 Low vs. high 0.03 (0.60) 0.01 0.96 9.38 (5.03) 0.19 0.06
Partnership status
 No vs. yes 0.92 (0.34) 0.15 0.008 −11.13 (2.31) −0.25 <0.001
Age × Social Media 1.58 (0.82) 0.52 0.05 −7.91 (5.81) −0.31 0.17
Age × Instant Messenger 0.41 (1.37) 0.11 0.76 −10.09 (8.14) −0.34 0.21
Age × SMS 1.39 (2.24) 0.56 0.54 1.35 (9.33) 0.15 0.86
Age2 × Social Media −1.88 (0.84) −0.59 0.03 7.83 (5.73) 0.30 0.17
Age2 × Instant Messenger −0.29 (1.41) −0.08 0.84 12.26 (8.50) 0.41 0.15
Age2 × SMS −1.23 (1.95) −0.56 0.53 −0.09 (8.13) −0.08 0.98
R 2 0.08 0.15

Notes. B = unstandardized beta-coefficient, β = standardized beta-coefficient, SE = standard error; significant results at p < 0.05 are highlighted in bold.