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. Author manuscript; available in PMC: 2020 Oct 5.
Published in final edited form as: Tob Control. 2020 May;29(Suppl 3):s170–s177. doi: 10.1136/tobaccocontrol-2020-055628

Figure 1:

Figure 1:

Cross-sectional Weighted Percent of Ever, P12M, P30D, and Daily P30DSLT Use Among Youth, Young Adults, and Adults 25+ in Wl, W2, and W3 of the PATH Study

Abbreviations: P12M = past 12-month; P30D = past 30-day; SLT = smokeless tobacco; W1 = Wave 1; W2 = Wave 2; W3 = Wave 3 W1/W2/W3 ever SLT use unweighted Ns: youth (ages 12-17) = 629/525/474; young adults (ages 18-24) = 1,942/1,610/1,560; adults 25+ (ages 25 and older) = 5,369/4,807/4,727W1/W2/W3 P12M SLT use unweighted Ns: youth = 407/324/294; young adults = 1,126/801/769; adults 25+ = 1,865/1,440/1,362W1/W2/W3 P30D SLT use unweighted Ns: youth = 198/141/124; young adults = 640/539/503; adults 25+ = 1,379/1,126/1,072W1/W2/W3 daily P30D SLT use unweighted Ns: youth = 47/29/26; young adults = 262/214/190; adults 25+ = 818/642/601 X-axis shows four categories of SLT use (ever, P12M, P30D, and daily P30D). Y-axis shows weighted percentages of W1, W2, and W3 users. Sample analyzed includes all W1, W2, and W3 respondents at each wave. All respondents with data at one wave are included in the sample for that wave's estimate and do not need to have complete data at all three waves. The PATH Study cross-sectional (W1) or single-wave weights (W2 and W3) were used to calculate estimates at each wave. Ever SLT use is defined as having ever used SLT, even once or twice in lifetime. P12M SLT use is defined as any SLT use within the past 12 months. P30D SLT use is defined as any SLT use within the past 30 days. Daily P30D SLT use is defined as use of SLT on all 30 of the past 30 days. All use definitions refer to any use that includes exclusive or polytobacco use of SLT.

a denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W1 and W2

b denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W1 and W3

c denotes significant difference at p<0.0167 (Bonferroni corrected for three comparisons) between W2 and W3

The logit-transformation method was used to calculate the 95% confidence intervals. Analyses were run on the W1, W2, and W3 Public Use Files (https://doi.org/10.3886/ICPSR36498.v8).