Table 1 Weighteda cycle-specific means, mean of within-individual differences (Δ) and standardized mean changes (SMD) for MDI scores from cycle 23 to 24, Nicotine Dependence in Teens study, Québec, Canada 2017–2021, n = 673.
Characteristics | Cycle specific values | Within-individual differences from cycle 23 to 24 | ||
|---|---|---|---|---|
Mean cycle 23 (95% CI) | Mean cycle 24 (95% CI) | Mean Δb (95% CI) | SMDc (95% CI) | |
All | 10.3 (9.6, 10.9) | 12.4 (11.7, 13.1) | 2.1 (1.4, 2.8) | 0.24 (0.14, 0.33) |
History of a mood/anxiety disorder diagnosis | − 0.14 (− 0.43, 0.14) | |||
No | 8.7 (8.0, 9.4) | 11.2 (10.4, 11.9) | 2.4 (1.6, 3.2) | |
Yes | 14.9 (13.7, 16.2) | 16.2 (14.9, 175) | 1.2 (− 0.1, 2.6) | |
Sex | 0.11 (− 0.09, 0.29) | |||
Male | 9.0 (8.0, 10.1) | 10.6 (9.6, 11.7) | 1.6 (0.5, 2.6) | |
Female | 11.1 (10.3, 11.9) | 13.6 (12.7, 14.4) | 2.5 (1.6, 3.3) | |
Ancestry | 0.04 (− 0.21, 0.30) | |||
European | 9.9 (9.2, 10.7) | 12.1 (11.3, 12.8) | 2.2 (1.4, 3.0) | |
Other | 11.6 (10.3, 13.0) | 14.2 (12.8, 15.5) | 2.5 (1.1, 3.9) | |
Born in Canada | 0.12 (− 0.26, 0.52) | |||
No | 11.0 (8.4, 13.6) | 12.1 (9.5, 14.8) | 1.1 (− 1.6, 3.8) | |
Yes | 10.2 (9.6, 10.9) | 12.4 (11.7, 13.1) | 2.2 (1.5, 2.9) | |
Lives in urban/suburban setting | 0.13 (− 0.11, 0.40) | |||
No | 10.5 (9.0, 12.0) | 11.7 (10.2, 13.3) | 1.2 (− 0.4, 2.8) | |
Yes | 10.3 (9.5, 11.0) | 12.6 (11.8, 13.3) | 2.3 (1.6, 3.1) | |
Lives alone | 0.21 (− 0.05, 0.52) | |||
No | 10.0 (9.4, 10.7) | 11.9 (11.2, 12.6) | 1.8 (1.1, 2.6) | |
Yes | 11.5 (9.9 13.1) | 15.1 (13.5 16.8) | 3.6 (2.0, 5.3) | |
Lives with children | − 0.06 (− 0.25, 0.14) | |||
No | 10.9 (10.0, 11.7) | 13.2 (12.3, 14.1) | 2.3 (1.4, 3.2) | |
Yes | 9.6 (8.6, 10.5) | 11.4 (10.4, 12.4) | 1.9 (0.9, 2.9) | |
Single parent in a household with children | 0.03 (− 1.17, 0.75) | |||
No | 9.2 (8.3, 10.2) | 11.1 (10.1, 12.1) | 1.8 (0.8, 2.9) | |
Yes | 13.8 (10.4, 17.3) | 15.9 (12.4, 19.5) | 2.1 (− 1.7, 5.9) | |
Age of children in households with children | 0.02 (− 0.81, 0.56) | |||
≥ 1 child age ≤ 5 years | 9.1 (8.2, 10.1) | 11.0 (9.9, 12.0) | 1.8 (0.8, 2.9) | |
Children all age > 5 years | 13.6 (10.8, 16.4) | 15.6 (12.7, 18.5) | 2.0 (− 1.1, 5.2) | |
Highest education | 0.08 (− 0.30, 0.57) | |||
More than high school | 10.3 (9.7, 11.0) | 12.4 (11.7, 13.1) | 2.1 (1.4, 2.8) | |
High school | 11.7 (7.9, 15.5) | 14.5 (10.6, 18.4) | 2.8 (− 1.1, 6.8) | |
Unemployed | 0.08 (− 0.19, 0.34) | |||
No | 10.0 (9.3, 10.7) | 12.0 (11.3, 12.7) | 2.0 (1.3, 2.8) | |
Yes | 11.8 (10.2, 13.3) | 14.5 (12.8, 16.1) | 2.7 (1.0, 4.3) | |
Household income | 0.08 (− 0.19, 0.34) | |||
< $50,000 | 12.9 (11.6, 14.2) | 14.5 (13.1, 15.8) | 1.6 (0.2, 3.0) | |
≥ $50,000 | 9.5 (8.8, 10.2) | 11.8 (11.1, 12.6) | 2.3 (1.5, 3.1) | |
Work-at-home status during COVID-19 among employed | − 0.12 (− 0.36, 0.11) | |||
Works at home | 11.1 (9.9, 12.2) | 13.7 (12.6, 14.9) | 2.7 (1.5, 3.8) | |
Works outside home/mixed | 9.2 (8.4, 10.1) | 11.0 (10.1, 11.8) | 1.7 (0.8, 2.6) | |
Self-reported adherence to public health recommendations | 0.09 (− 0.22, 0.47) | |||
Low | 12.5 (10.7, 14.3) | 13.9 (12.1, 15.8) | 1.5 (− 0.4, 3.4) | |
High | 10.0 (9.3, 10.7) | 12.2 (11.5, 12.9) | 2.2 (1.5, 2.9) | |
Worried about being unemployed | 0.17 (− 0.09, 0.42) | |||
No | 9.8 (9.1, 10.4) | 11.7 (11.0, 12.4) | 1.9 (1.2, 2.7) | |
Yes | 13.7 (12.0, 15.4) | 17.0 (15.2, 18.7) | 3.3 (1.5, 5.1) | |
Worried about not being able to pay bills | 0.12 (− 0.19, 0.43) | |||
No | 9.6 (8.9, 10.3) | 11.6 (10.9, 12.3) | 2.0 (1.3, 2.7) | |
Yes | 14.7 (13.0, 16.4) | 17.7 (16.0, 19.5) | 3.0 (1.2, 4.8) | |
Worried about not being able to visit people who depend on you | 0.12 (− 0.15, 0.39) | |||
No | 9.7 (8.9, 10.4) | 11.6 (10.8, 12.4) | 1.9 (1.1, 2.7) | |
Yes | 12.5 (11.2, 13.8) | 15.4 (14.0, 16.8) | 2.9 (1.5, 4.3) | |
