. Author manuscript; available in PMC: 2022 Nov 29.

Published before final editing as: Pancreatology. 2021 May 29:S1424-3903(21)00473-7. doi: 10.1016/j.pan.2021.05.302

Table 3.

Distribution of environmental smoke exposure by smoking intensity at age 25 in persons diagnosed with chronic pancreatitis

Variable	Category	All (N = 317)	Did not smoke [A] (N = 105)	Smoked <1 PPD [B] (N = 85)	Smoked ≥1 PPD [C] (N = 127)	Trend P-Value	A&B vs C P-Value	A vs B&C P-Value	B vs C P-Value
		n (%) or median (interquartile range)	n (%) or median (interquartile range)	n (%) or median (interquartile range)	n (%) or median (interquartile range)
Childhood household smoke exposure	<1 year	75 (23.7)	26 (24.8)	22 (25.9)	27 (21.3)	0.3768^c	0.6077	0.6671	0.6574
	1-9 years	20 (6.3)	5 (4.8)	7 (8.2)	8 (6.3)	.	.	.
	10-18 years	209 (65.9)	64 (61.0)	56 (65.9)	89 (70.1)	.	.	.
Household passive smoke exposure as adult	<1 year	86 (27.1)	40 (38.1)	18 (21.2)	28 (22.0)	0.0003^c	0.0148	0.0024	0.2833
	1-9 years	60 (18.9)	20 (19.0)	18 (21.2)	22 (17.3)	.	.	.
	10-19 years	56 (17.7)	16 (15.2)	17 (20.0)	23 (18.1)	.	.	.
	20-29 years	48 (15.1)	7 (6.7)	12 (14.1)	29 (22.8)	.	.	.
	30-39 years	30 (9.5)	7 (6.7)	13 (15.3)	10 (7.9)	.	.	.
	40+ years	22 (6.9)	4 (3.8)	5 (5.9)	13 (10.2)	.	.	.
Years worked in place where people smoked	<1 year	74 (23.3)	29 (27.6)	20 (23.5)	25 (19.7)	0.0008^c	0.0083	0.0453	0.1675
	1-9 years	72 (22.7)	28 (26.7)	22 (25.9)	22 (17.3)	.	.	.
	10-19 years	60 (18.9)	19 (18.1)	17 (20.0)	24 (18.9)	.	.	.
	20-29 years	48 (15.1)	10 (9.5)	9 (10.6)	29 (22.8)	.	.	.
	30+ years	51 (16.1)	10 (9.5)	16 (18.8)	25 (19.7)	.	.	.

PPD = packs per day,

= Linear Regression