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. Author manuscript; available in PMC: 2020 Sep 29.
Published in final edited form as: Tob Control. 2020 May;29(Suppl 3):s163–s169. doi: 10.1136/tobaccocontrol-2020-055624

Table 1:

Transitions in P30D Product Use at W2 and W3 Among W1 P30D Cigar Users.

Youth Young Adults Adults 25+
W1 Exclusive Cigar Use W1 Cigar PTU w/CIGS W1 Cigar PTU w/o CIGS W1 Exclusive Cigar Use W1 Cigar PTU w/CIGS W1 Cigar PTU w/o CIGS W1 Exclusive Cigar Use W1 Cigar PTU w/CIGS W1 Cigar PTU w/o CIGS
Mutually Exclusive Pathways Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI Weighted % 95% CI
Persistent cigar use type at all waves
Continuing the same W1 use type (exclusive, PTU w/CIGS, or PTU w/o CIGS) at each wave
5.2a (1.8–13.9) 24.7a,c (17.0–34.4) 2.3c (0.3–14.1) 5.1a (2.9–8.8) 23.0a,c (20.3–26.1) 12.9c (7.8–20.5) 30.1b (25.4–35.3) 30.2c (27.6–32.9) 9.8b,c (6.6–14.3)
Cigar use type reuptake
The same broad use type (exclusive or PTU) at W1 and W3 (but a different tobacco use at W2)
5.3b (1.2–20.1) 11.0c (6.0–19.3) 31.4b,c (18.7–47.5) 5.7a,b (3.4–9.5) 14.6a (12.5–17.0) 22.2b (16.8–28.8) 7.7 (5.2–11.3) 11.3 (9.6–13.2) 14.9 (9.0–23.5)
Cigar use type transition
Transition from W1 exclusive use to PTU by W3, or transition from W1 PTU to exclusive use by W3 (without discontinuing all tobacco use at W2)
19.3 (9.8–34.6) N/A N/A N/A N/A 19.6a,b (15.6–24.5) 1.9a,c (1.2–3.1) 7.7b,c (4.7–12.6) 8.8a (6.4–12.1) 2.9a,c (1.9–4.4) 19.1c (12.2–28.6)
Switch or discontinue cigar use, but continue other tobacco use
W1 exclusive user who switches to another tobacco product by W3 or W1 polytobacco user that discontinues cigar use by W3 but uses another tobacco product (without discontinuing all tobacco use at W2)
20.0 (10.9–33.9) 32.8 (26.0–40.4) 27.5 (15.6–43.7) 13.0a (9.4–17.8) 43.5a,c (40.5–46.6) 22.6c (16.5–30.2) 3.8a,b (2.3–6.2) 47.0a,c (44.2–49.7) 28.8b,c (20.7–38.5)
Tobacco use reuptake
W1 users who discontinue all tobacco use at W2 and use again at W3
14.5 (7.9–25.2) 11.2 (7.1–17.3) 14.9 (6.7–29.8) 11.3a (7.8–16.1) 5.0a (3.6–6.9) 6.1 (2.9–12.4) 8.9a (6.6–11.7) 2.4a (1.7–3.6) N/A N/A
Discontinue all tobacco use
W1 users who discontinue all tobacco use at either W2 and W3 or just W3
35.5 (23.1–50.3) 20.3 (14.4–27.9) 24.0 (13.2–39.7) 45.3a,b (38.8–51.8) 12.0a,c (9.8–14.5) 28.5b,c (22.3–35.8) 40.7a,b (35.7–46.0) 6.3a,c (5.0–7.8) 27.5b,c (19.7–36.9)

Notes:

Abbreviations: P30D = past 30-day; W2 = Wave 2; W3 = Wave 3; W1 = Wave 1; polytobacco use = PTU; w/ = with; CIGS = cigarettes; w/o = without; CI = confidence interval; N/A = not applicable

Analysis included youth (ages 12–17), young adult (ages 18–24), and adult 25+ (ages 25 and older) W1 P30D cigar users with data at all three waves. Respondent age was calculated based on age at W1. W3 longitudinal (all-waves) weights were used to calculate estimates. All tobacco use is defined as P30D use. Use type refers to exclusive use, PTU w/CIGS, or PTU w/o CIGS.

a

denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W1 Exclusive Cigar Use and W1 Cigar PTU w/CIGS

b

denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W1 Exclusive Cigar Use and W1 Cigar PTU w/o CIGS

c

denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W1 Cigar PTU w/CIGS and W1 Cigar PTU w/o CIGS

The logit-transformation method was used to calculate the 95% CIs.

Estimate should be interpreted with caution because it has low statistical precision. It is based on a denominator sample size of less than 50, or the coefficient of variation of the estimate or its complement is larger than 30%.

Analyses were run on the W1, W2, and W3 Public Use Files (https://doi.org/10.3886/ICPSR36498.v8).