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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: J Addict Med. 2018 Sep-Oct;12(5):373–380. doi: 10.1097/ADM.0000000000000414

Table 1.

Baseline Participant Characteristics by Randomization Group (n=32)1

All
(n=32)
HIIT
(n=12)
CA
(n=9)
Control
(n=11)
p-value2
Age 30.3±1.0 30.4±1.5 29.2±1.8 31.0±2.2 0.6859
Gender (n, % female) 20 (63%) 4 (33%) 7 (78%) 9 (82%) 0.0368
Cigarettes/Day 13.1±0.9 14.1±1.4 10.8±1.5 14.0±1.5 0.2155
Body Mass Index (BMI) 27.1±1.1 25.1±1.6 27.3±2.2 29.1±2.0 0.3568
Race (n, %)
 African American/Black 3 (9%) 1 (8%) 1 (11%) 1 (9%) 0.9351
 American Indian, Alaskan Native 3 (9%) 2 (17%) 1 (11%) 0 (0%)
 Other/Mixed Race 3 (9%) 1 (8%) 1 (11%) 1 (9%)
 White 23 (72%) 8 (67%) 6 (67%) 9 (82%)
Education Level (n, %)
 High school graduate 9 (28%) 5 (42%) 0 (0%) 4 (36%) 0.1975
 Some college/2yr degree 19 (59%) 6 (50%) 7 (78%) 6 (55%)
 College graduate/4yr degree 4 (13%) 1 (8%) 2 (22%) 1 (9%)
Readiness to Quit within 30 days (n, % at screening) 18 (56%) 7 (58%) 5 (56%) 6 (55%) 1.0000
Baseline exercise level (IPAQ), median (IQR) METs, missing n=6 1,073 (2,574) 2,013 (6,270) 528 (1,013) 1,510 (4,232) 0.4405
Baseline exercise level (IPAQ), n (%)
 1st Quartile (99-264) 6 (23%) 3 (30%) 2 (25%) 1 (13%)
 2nd Quartile (396-759) 7 (27%) 1 (10%) 4 (50%) 2 (25%)
 3rd Quartile (1,386-2,772) 6 (23%) 2 (20%) 1 (13%) 3 (28%)
 4th Quartile (2,970-15,048) 7 (27%) 4 (40%) 1 (13%) 2 (25%)
1

Unless otherwise stated values are Mean±SE

2

p-values from Kruskal Wallis tests or Fisher’s Exact tests