Table 3.

Adjusted hazard ratios and 95% confidence intervals for initiation of tobacco products, PATH 2013-2017.

	HOOKAH	E-CIGARETTES	CIGARETTES	TRADITIONAL CIGARS	SMOKELESS TOBACCO	CIGARILLOS
Variable	Primary analysis based on the recalled age of initiation
Sex
Female	1.00	1.00	1.00	1.00	1.00	1.00
Male	0.97(0.89, 1.05)	1.08(1.01, 1.14)	1.13(1.05, 1.21)	2.61(2.28, 2.99)	2.25(1.99, 2.54)	1.18(1.08, 1.30)
Race/ethnicity
Non-Hispanic White	1.00	1.00	1.00	1.00	1.00	1.00
Hispanic	1.20(1.08, 1.33)	0.97 (0.90, 1.05)	0.93 (0.86, 0.99)	0.59 (0.50, 0.70)	0.56 (0.47, 0.65)	0.95 (0.83, 1.08)
Non-Hispanic Black	1.04(0.92, 1.19)	0.73 (0.66, 0.82)	0.75 (0.66, 0.84)	0.47 (0.37, 0.60)	0.42 (0.20, 0.59)	1.11 (0.92, 1.34)
Non-Hispanic Other*	1.20(1.02, 1.40)	0.84(0.75, 0.94)	0.89 (0.79, 1.01)	0.68 (0.53, 0.87)	0.66 (0.52, 0.85)	0.98 (0.81, 1.17)
Ever use of the TP at the first wave of PATH participation
Yes	1.00	1.00	1.00	1.00	1.00	1.00
No	0.03(0.02, 0.03)	0.11(0.10, 0.11)	0.03(0.03, 0.04)	0.01(0.01, 0.02)	0.01(0.01, 0.03)	0.02(0.01, 0.02)
Sensitivity based on uniform six “6” years lower bound for left censored sample
Sex
Female	1.00	1.00	1.00	1.00	1.00	1.00
Male	0.91(0.82, 1.00)	1.08(1.00, 1.16)	1.15(1.06, 1.25)	2.70(2.36, 3.08)	2.56(2.22, 2.95)	1.24(1.05, 1.45)
Race/ethnicity
Non-Hispanic White	1.00	1.00	1.00	1.00	1.00	1.00
Hispanic	1.23(1.06, 1.41)	0.94(0.85, 1.04)	0.91 (0.83, 1.00)	0.56 (0.48, 0.66)	0.49 (0.41, 0.59)	0.75 (0.61, 0.91)
Non-Hispanic Black	1.08(0.92, 1.26)	0.69(0.61, 0.78)	0.69 (0.61, 0.78)	0.45 (0.35, 0.56)	0.39 (0.28, 0.55)	1.18 (0.88, 1.59)
Non-Hispanic Other*	1.24(1.02, 1.51)	0.81(0.72, 0.92)	0.85 (0.74, 0.98)	0.66 (0.51, 0.85)	0.60 (0.45, 0..80)	0.82 (0.60, 1.14)
Ever use of the TP at the first wave of PATH participation
Yes	1.00	1.00	1.00	1.00	1.00	1.00
No	0.01(0.0, 0.01)	0.02(0.02, 0.02)	0.01(0.01, 0.02)	0.01(0.00, 0.01)	0.01(0.00, 0.01)	0.01(0.00, 0.01)

^*Non-Hispanic other includes Asian, multi-race, etc.