Table 3.
The Association NMP-Q, ISI and Selected Features of the Study Participants (n 549)
| Correlation Analysis | |||
|---|---|---|---|
| r | P-value | ||
| NMP-Q (Continuous) | ISI (Continuous) | 0.63 | 0.001 |
| Regression analysis | |||
| Model 1 | |||
| Independent Variable | Dependent Variable | Estimate β (95% CI) | P-value |
| NMP-Q (Continuous) | ISI (Continuous) | 0.15 (0.13–0.17) | 0 0.001 |
| Model 2 | |||
| Age | ISI | 1.00 (0.96–1.06) | 0.85 |
| NMP-Q | 1.02 (0.95–1.10) | 0.53 | |
| Sex (Male) | ISI | 0.65 (0.40–1.05) | 0.08 |
| NMP-Q | 1.02 (0.51–2.02) | 0.96 | |
| BMI | ISI | 0.98 (0.94–1.03) | 0.46 |
| NMP-Q | 1.00 (0.94–1.06) | 0.92 | |
| MP screen size | ISI | 0.80 (0.50–1.28) | 0.35 |
| NMP-Q | 1.32 (0.66–2.61) | 0.43 | |
| Model 3 | |||
| MP screen size | NMP-Q | 1.36 (0.69–2.68) | 0.38 |
| MP screen size | ISI | 0.54 (0.25–1.16) | 0.12 |
Notes: Correlation analysis is measure of linear association is denoted by the letter r, which is the Pearson product-moment coefficient. Regression analysis, reported estimates are β coefficient for linear regression analysis and odds ratio for logistic regression analysis. Model 1 is univariate linear regression analysis. Model 2 is univariate logistic regression analysis. Model 3 multivariate logistic regression analysis correcting for age, sex and ISI for estimating NMP-Q or NMP-Q for estimating ISI. For models 2 and 3: ISI was categorized as insomnia ISI ≥ 15 or healthy ISI < 15. NMP-Q was categorized as moderate to severe nomophobia NMP-Q ≥ 60 or mild nomophobia < 60. MPSS mobile phone. P-value was significant < 0.05.