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. 2016 Nov 17;16:408. doi: 10.1186/s12888-016-1083-3

Table 4.

Results of regression analysis with PSU as a criterion variablea (n = 1062)

Crude Adjusted
Predictors OR 95% CI OR 95% CI p
Gender: 0 = male; 1 = female 0.96 0.72–1.29 0.80 0.55–1.17 0.251
Grade 0.89 0.78–1.01 0.89 0.77–1.04 0.135
Science-humanities division: 0 = Science; 1 = Humanities 1.73 1.26–2.37 2.14 1.45–3.16 <0.001
Monthly income from family (RMB) - - 0.003
 0:1000–1500; 1: ≤1000 1.42 1.02–1.98 1.34 0.93–1.93 0.112
 0:1000–1500; 1: ≥1500 2.14 1.35–3.39 2.45 1.46–4.13 0.001
Emotional symptoms (SAS + SDS) 1.04 1.03–1.05 1.01 1.01–1.03 0.039
PSS 1.14 1.10–1.17 1.06 1.02–1.10 0.003
CFMPS-DA 1.20 1.15–1.26 1.15 1.08–1.22 <0.001
CFMPS-PE 1.09 1.05–1.12 1.04 1.00–1.08 0.047
CFMPS-CM 1.11 1.08–1.14 1.04 0.98–1.09 0.068
CFMPS-OR 0.94 0.91–0.98 0.96 0.92–1.01 0.089
CFMPS-PS 1.02 0.99–1.05 0.96 0.92–1.01 0.085
(Intercept) - - 0.006 - <0.001

PSU problematic smartphone use, OR odds ratio, CI confidence interval, SAS Zung Self-Rating Anxiety Scale, SDS Zung Self-Rating Depression Scale, PSS Perceived Stress Scale, CFMPS-DA Chinese Frost Multidimensional Perfectionism Scale-Doubts about Actions subscale, CFMPS-PE CFMPS-Parental Expectations subscale, CFMPS-CM CFMPS- Concern over Mistakes subscale, CFMPS-OR CFMPS-Organization subscale, CFMPS-PS CFMPS- Personal Standards subscale

aCriterion variable setting: 0 = non-PSU; 1 = PSU