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. 2026 Sep 22;10:e95955. doi: 10.2196/95955

Table 5.

Multinomial logistic regression to predict membership in the 3 latent classes in longitudinal loneliness trajectories over 10 years, 2004-2014. Class 1 (high increasing loneliness), class 2 (intermediate stable loneliness), and class 3 (low stable loneliness) are reference categories.

Variable Estimate (SE) Wald χ2 (df=1) Significance Odds ratio (95% CI)
Age at Q5a

Class 1 0.08 (0.02) 15.97 <.001 1.09 (1.04-1.13)

Class 2 0.03 (0.01) 6.13 .01 1.03 (1.01-1.06)
Sex (1=male, 2=female)

Class 1 0.53 (0.40) 1.72 .19 1.69 (0.77-3.71)

Class 2 0.46 (0.23) 3.87 .049 1.59 (1.00-2.51)
ISCEDb

Class 1 –0.12 (0.12) 1.05 .31 0.89 (0.71-1.11)

Class 2 –0.03 (0.07) 0.18 .67 0.97 (0.85-1.11)
SRHc at Q5

Class 1 –0.58 (0.32) 3.27 .07 0.56 (0.30-1.05)

Class 2 –0.47 (0.21) 4.93 .03 0.63 (0.42-0.95)
Live alone at Q5

Class 1 1.46 (0.37) 15.78 <.001 4.30 (2.09-8.84)

Class 2 0.86 (0.25) 11.79 <.001 2.36 (1.45-3.86)
Perceived social support at Q5

Class 1 –0.33 (0.07) 23.53 <.001 0.72 (0.62-0.82)

Class 2 –0.22 (0.05) 17.47 <.001 0.80 (0.72-0.89)
Extraversion at Q5

Class 1 –0.06 (0.08) 0.43 .51 0.95 (0.80-1.12)

Class 2 –0.10 (0.05) 3.85 .0498 0.90 (0.81-1.00)
Daily digital use at Q5 (0=no; 1=yes)

Class 1 –1.29 (0.60) 4.59 .03 0.27 (0.08-0.90)

Class 2 –0.38 (0.27) 1.91 .17 0.69 (0.40-1.17)

aQ5: questionnaire wave 5.

bISCED: International Standard Classification of Education.

cSRH: self-rated health.