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. 2019 Oct 9;22(7):1131–1138. doi: 10.1093/ntr/ntz194

Table 1.

Participant characteristics (N = 1,872)

Panel 1 Panel 2 Panel 3 Panel 4 Overall
(n = 478) (n = 451) (n = 470) (n = 473) (n = 1,872)
n (%) n (%) n (%) n (%) n (%)
Age, mean years 43.00 43.37 42.79 43.54 43.17
 (SD) (15.21) (14.45) (14.29) (14.18) (14.53)
 [range] [18–83] [18–80] [19–85] [18–81] [18–85]
Age, years
 18–25 61 (13) 41 (9) 49 (10) 48 (10) 199 (11)
 26–34 105 (22) 111 (25) 120 (26) 100 (21) 437 (23)
 35–44 115 (24) 109 (24) 100 (22) 114 (24) 437 (23)
 45–54 64 (13) 71 (16) 75 (16) 89 (19) 299 (16)
 55–64 83 (17) 76 (17) 91 (19) 80 (17) 330 (18)
 65+ 50 (11) 43 (9) 35 (7) 42 (9) 170 (9)
Race
 American Indian or Alaskan native 12 (3) 10 (2) 12 (3) 4 (1) 38 (2)
 Asian 16 (3) 20 (4) 15 (3) 20 (4) 71 (3)
 Black or African American 34 (7) 54 (12) 47 (10) 51 (11) 186 (10)
 Native Hawaiian or Pacific Islander 3 (1) 2 (1) 2 (1) 2 (1) 9 (1)
 White 389 (81) 349 (77) 378 (80) 376 (79) 1492 (80)
 Other 24 (5) 16 (4) 16 (3) 20 (4) 76 (4)
Hispanic 43 (9) 36 (8) 36 (8) 40 (8) 155 (8)
Female 262 (55) 245 (54) 261 (55) 252 (53) 1,020 (54)
Gay, lesbian or bisexual 54 (11) 38 (8) 48 (10) 43 (9) 183 (10)
Education
 High school or less 145 (30) 127 (28) 149 (32) 141 (30) 562 (30)
 Some college 139 (29) 141 (31) 145 (30) 154 (32) 579 (31)
 College graduate or associate’s degree 161 (34) 144 (32) 146 (31) 141 (30) 592 (32)
 Graduate degree 25 (5) 33 (7) 27 (6) 30 (6) 115 (6)
 Did not answer 8 (2) 6 (2) 3 (1) 7 (2) 24 (1)
Household income, annual
 US$0–US$24,999 105 (22) 129 (29) 140 (30) 129 (27) 503 (27)
 US$25,000–US$49,999 162 (34) 142 (31) 142 (30) 141 (30) 587 (32)
 US$50,000US$74,999 87 (18) 88 (20) 91 (19) 98 (21) 364 (19)
 US $75,000+ 116 (24) 87 (19) 93 (19) 97 (20) 393 (21)
 Did not answer 8 (2) 5(1) 4 (1) 8 (2) 25 (1)
Type of tobacco user
 E-cigarettes only 112 (23) 72 (16) 87 (19) 79 (17) 350 (19)
 Cigarettes only 190 (40) 182 (40) 190 (40) 187 (40) 749 (40)
 Dual user 176 (37) 197 (44) 193 (41) 207 (44) 773 (41)
Other tobacco product use
 LCC 87 (18) 100 (22) 87 (19) 100 (21) 374 (20)
 Traditional cigars 74 (15) 85 (19) 89 (19) 72 (15) 320 (17)
 Hookah 43 (9) 37 (8) 47 (10) 42 (9) 169 (9)

SD = standard deviation, LCC = little cigars and cigarillos. All current tobacco use is past 30 days, except cigarette smoking which refers to adults who have smoked at least 100 cigarettes in their life and now smoke some days or every day.