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. Author manuscript; available in PMC: 2013 May 29.
Published in final edited form as: Tob Control. 2010 Oct 30;20(1):e1. doi: 10.1136/tc.2010.037382

Table 3.

Exposure to tobacco smoke pollution in smoker and nonsmoker homes before (Part 1) and after (Part 2) occupants move.

Part 1: Original Occupants Part 2: New Nonsmoker Occupants
N Mean [95% CI] N Mean [95% CI]
Urine Cotinine (ng/ml)
 All Nonsmoker Homes 50 0.15 [.09; .21] 13 0.13A [.00; .27]
 All Smoker Homes 31 5.42 [3.88; 7.46] 20 0.45A [.13; .86]
 Same Nonsmoker Homes 13 0.14 [.00; .29] 13 0.13B [.00; .27]
 Same Smoker Homes 5 3.66 [1.49; 7.70] 5 0.61B [.00; 2.26]
Finger Nicotine (ng/wipe)
 All Nonsmoker Homes 50 0.47 [.04; 1.08] 11 0.75C [.00; 3.06]
 All Smoker Homes 91 660.21 [441.58; 986.84] 19 5.19C [0.81; 20.12]
 Same Nonsmoker Homes 11 1.35 [.00; 8.02] 11 0.75D [.00; 3.06]
 Same Smoker Homes 18 803.85 [387.84; 1664.96] 18 5.85D [.90; 23.72]
Reported Exposure (cig/w)
 All Nonsmoker Homes 50 0 12 0
 All Smoker Homes 31 14.19 [7.16; 27.28] 20 0.40 [.00; 1.15]
 Same Nonsmoker Homes 12 0 12 0
 Same Smoker Homes 5 18.49 [.10; 343.13] 5 1.52 [.00; 20.01]

Note.

A

p=0.0344 (one-sided) Part 2 smoker vs. Part 2 nonsmoker homes.

B

p=0.1176 (one-sided) Part 2 smoker vs. Part 2 nonsmoker homes.

C

p=0.0402 (one-sided) Part 2 smoker vs. Part 2 nonsmoker homes.

D

p=0.0339 (one-sided) Part 2 smoker vs. Part 2 nonsmoker homes.