Table 5.
Association of digital media use subcategories with tobacco use initiation across follow-up
| Na (row %) | Adj. ORc | P-value | Na (row %) | Adj. ORc | P-value | Na (row %) | Adj. ORc | P-value | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Social Media Posting | 0e | 135 (3.8%) | Ref | 0.43 | 36 (1.0%) | Ref | 0.88 | 67 (1.9%) | Ref | 0.47 |
| 1e | 21 (5.9%) | 1.12 (0.65–1.93) | 7 (2.0%) | 0.79 (0.28–2.25) | 9 (2.6%) | 1.20 (0.55–2.61) | ||||
| 2e | 11 (4.9%) | 0.60 (0.25–1.44) | 5 (2.2%) | 0.78 (0.19–3.19) | 4 (1.8%) | 0.46 (0.11–1.94) | ||||
| Reading news/articles & Browsing photos | 0e | 79 (4.0%) | Ref | 0.15 | 20 (1.0%) | Ref | 0.98 | 37 (1.9%) | Ref | 0.031 |
| 1e | 62 (4.3%) | 0.83 (0.55–1.24) | 17 (1.2%) | 1.08 (0.50–2.36) | 35 (2.4%) | 0.95 (0.54–1.68) | ||||
| 2e | 23 (3.3%) | 0.55 (0.30–1.00) | 11 (1.6%) | 1.05 (0.38–2.89) | 7 (1.0%) | 0.26 (0.09–0.75) | ||||
| Chatting & Shopping | 0e | 129 (3.7%) | Ref | 0.35 | 37 (1.1%) | Ref | 0.46 | 64 (1.9%) | Ref | 0.019 |
| 1e | 28 (6.0%) | 1.32 (0.81–2.16) | 9 (1.9%) | 1.42 (0.61–3.30) | 9 (2.0%) | 0.90 (0.41–2.01) | ||||
| 2e | 8 (5.9%) | 1.74 (0.67–4.50) | 1 (0.7%) | 0.41 (0.04–3.81) | 7 (5.2%) | 4.63 (1.53–14.06) | ||||
| Gaming | 0e | 125 (4.0%) | Ref | 0.53 | 31 (1.0%) | Ref | 0.071 | 61 (2.0%) | Ref | 0.86 |
| 1e | 14 (2.9%) | 0.72 (0.39–1.36) | 2 (0.4%) | 0.36 (0.08–1.67) | 8 (1.7%) | 0.79 (0.33–1.85) | ||||
| 2e | 20 (4.2%) | 1.08 (0.60–1.95) | 10 (2.1%) | 2.13 (0.85–5.31) | 9 (2.1%) | 0.97 (0.41–2.29) | ||||
| Checking In | 0e | 30 (2.3%) | Ref | 0.0001 | 10 (0.8%) | Ref | 0.15 | 17 (1.4%) | Ref | 0.20 |
| 1e | 37 (3.0%) | 1.35 (0.79–2.31) | 10 (0.8%) | 0.84 (0.31–2.30) | 20 (1.6%) | 1.26 (0.61–2.59) | ||||
| 2e | 96 (6.1%) | 2.69 (1.62–4.48) | 27 (1.7%) | 1.85 (0.74–4.59) | 41 (2.7%) | 1.84 (0.90–2.61) | ||||
| Music | 0e | 88 (3.5%) | Ref | 0.38 | 24 (1.0%) | Ref | 0.52 | 39 (1.6%) | Ref | 0.09 |
| 1e | 78 (4.8%) | 1.18 (0.81–1.72) | 23 (1.4%) | 1.26 (0.63–2.51) | 41 (2.6%) | 1.54 (0.90–2.61) |
The number of observations with (nonmissing) data available. Each student could contribute multiple observations.
The estimate of the association of the respective regressor with tobacco initiation (vs. no initiation) across follow-up is adjusted for gender, ethnicity, baseline highest parental education, baseline free or reduced lunch, and wave.
The estimate of the association of the respective regressor with tobacco initiation (vs. no initiation) across follow-up is simultaneously adjusted for gender, ethnicity, baseline highest parental education, baseline free or reduced lunch, wave, and all other social media predictor variables.
Any tobacco use initiation includes reported use of a few puffs of a cigarette, a whole cigarette, e-cigarettes with tobacco, smokeless tobacco, big cigars, little cigars/cigarillos, and hookah water pipe.
Reported frequency of digital media use. 0= no high frequency use of either digital media item; 1= high frequency use of 1 item; 2= high frequency use of both digital media items.
Combustible cigarette use initiation includes reported use of a few puffs of a cigarette or a whole cigarette