Table 2 Results of factors associated with sleep duration using multinomial logistic regression.
From: Association between perceived financial hardship and sleep duration among Korean adolescents
Variables | Sleep hours | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Men | Women | ||||||||||
< 7 h | 7 ~ 9 h | ≥ 9 h | < 7 h | 7 ~ 9 h | ≥ 9 h | ||||||
OR | 95% CI | OR | OR | 95% CI | OR | 95% CI | OR | OR | 95% CI | ||
Perceived household financial difficulty due to COVID-19 | Not at all | 1.00 | 1.00 | ||||||||
Not difficult | 1.01 | (0.96–1.06) | 0.90 | (0.81–1.00) | 1.00 | (0.94–1.05) | 0.94 | (0.81–1.10) | |||
Difficult | 0.99 | (0.93–1.05) | 1.07 | (0.95–1.21) | 0.97 | (0.92–1.04) | 1.16 | (0.98–1.36) | |||
Very difficult | 1.10 | (1.00–1.22) | 1.20 | (0.99–1.45) | 1.14 | (1.01–1.29) | 1.52 | (1.16–1.99) | |||
Grade | Grade 7 | 1.00 | 1.00 | ||||||||
Grade 8 | 1.61 | (1.50–1.73) | 0.62 | (0.56–0.66) | 1.59 | (1.48–1.71) | 0.67 | (0.57–0.77) | |||
Grade 9 | 2.35 | (2.19–2.53) | 0.41 | (0.36–0.47) | 2.36 | (2.20–2.54) | 0.54 | (0.45–0.63) | |||
Grade 10 | 6.90 | (6.31–7.55) | 0.19 | (0.15–0.24) | 5.65 | (5.15–6.21) | 0.38 | (0.30–0.49) | |||
Grade 11 | 8.89 | (8.10–9.76) | 0.27 | (0.21–0.34) | 6.86 | (6.20–7.59) | 0.43 | (0.33–0.56) | |||
Grade 12 | 9.36 | (8.4710.35) | 0.22 | (0.170.29) | 6.77 | (6.08–7.54) | 0.41 | (0.31–0.55) | |||
Academic level | High | 1.00 | 1.00 | ||||||||
Middle | 0.90 | (0.85–0.95) | 1.33 | (1.20–1.47) | 0.91 | (0.86–0.97) | 1.47 | (1.27–1.69) | |||
Low | 0.90 | (0.86–0.96) | 1.45 | (1.30–1.61) | 0.87 | (0.81–0.92) | 1.69 | (1.46–1.96) | |||
Region | Capital area | 1.00 | 1.00 | ||||||||
City area | 0.84 | (0.79–0.90) | 1.29 | (1.17–1.42) | 0.76 | (0.71–0.80) | 1.04 | (0.91–1.18) | |||
Rural | 0.72 | (0.63–0.82) | 1.44 | (1.21–1.72) | 0.54 | (0.49–0.60) | 1.01 | (0.80–1.27) | |||
Household income | High | 1.00 | 1.00 | ||||||||
Middle | 0.93 | (0.890.97) | 0.90 | (0.830.99) | 0.96 | (0.91–1.01) | 0.90 | (0.79–1.03) | |||
Low | 0.97 | (0.901.05) | 0.94 | (0.801.11) | 0.89 | (0.81–0.97) | 1.06 | (0.86–1.30) | |||
Type of residence | With family | 1.00 | 1.00 | ||||||||
Without family | 1.02 | (0.86–1.21) | 0.69 | (0.51–0.94) | 0.90 | (0.75–1.10) | 1.02 | (0.69–1.49) | |||
Depression | No | 1.00 | 1.00 | ||||||||
Yes | 1.26 | (1.20–1.33) | 0.96 | (0.85–1.07) | 1.35 | (1.29–1.42) | 0.95 | (0.82–1.08) | |||
Activity | No | 1.00 | 1.00 | ||||||||
Yes | 0.89 | (0.85–0.93) | 0.91 | (0.83–1.00) | 0.84 | (0.80–0.88) | 0.95 | (0.84–1.07) | |||
Smoking | No | 1.00 | 1.00 | ||||||||
Yes | 1.25 | (1.16–1.35) | 1.06 | (0.88–1.27) | 0.97 | (0.87–1.09) | 0.83 | (0.59–1.17) | |||
Alcohol consumption | No | 1.00 | 1.00 | ||||||||
Yes | 1.25 | (1.19–1.31) | 0.91 | (0.82–1.01) | 1.26 | (1.19–1.34) | 1.02 | (0.86–1.21) | |||
Smartphone usage | No | 1.00 | 1.00 | ||||||||
Yes (~ 2 h) | 0.75 | (0.65–0.88) | 0.54 | (0.44–0.66) | 0.75 | (0.60–0.93) | 0.76 | (0.51–1.12) | |||
Yes (2 h more) | 0.92 | (0.79–1.07) | 0.38 | (0.31–0.47) | 1.07 | (0.87–1.33) | 0.51 | (0.35–0.75) | |||
Stress | No | 1.00 | 1.00 | ||||||||
Yes | 1.53 | (1.46–1.60) | 0.75 | (0.69–0.82) | 1.65 | (1.55–1.75) | 0.72 | (0.63–0.82) | |||
Year | 2020 | 1.00 | 1.00 | ||||||||
2021 | 1.12 | (1.06–1.19) | 0.75 | (0.68–0.82) | 1.17 | (1.11–1.25) | 0.66 | (0.58–0.75) | |||
