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. Author manuscript; available in PMC: 2016 Feb 5.
Published in final edited form as: Tob Control. 2014 Sep 26;24(6):609–615. doi: 10.1136/tobaccocontrol-2014-051765

Table 2.

Factors Associated with Within or Between Brand Family Switching

Covariates Within-brand vs. no switch or between brand switch (N=1435) Between brand vs. no switch or within-brand switch (N=1435)
OR 95% CI OR 95% CI
Sex
 Female 1.02 (0.81–1.30) 1.02 (0.78–1.34)
 Male (reference) 1.00 ------------- ----- -------------
Age Group
 55–max 0.43 (0.24–0.75) 0.55 (0.27–1.12)
 40–54 0.46 (0.26–0.81) 0.43 (0.21–0.87)
 25–39 0.50 (0.27–0.90) 0.67 (0.32–1.39)
 18–24 (reference) 1.00 ------------- ----- -------------
Race
 Black 1.34 (0.87–2.08) 1.34 (0.77–2.33)
 Other 1.31 (0.86–1.99) 1.61 (1.03–2.53)
 White (reference) 1.00 ------------- ----- -------------
Incomea
 Low 0.95 (0.67–1.34) 1.73 (1.20–2.51)
 Middle 1.28 (0.94–1.74) 1.33 (0.93–1.92)
 No answer 1.22 (0.70–2.13) 1.20 (0.62–2.32)
 High (reference) 1.00 ------------- ----- -------------
Nicotine Addictionb
 >=4 0.79 (0.61–1.02) 1.11 (0.85–1.45)
 <4 (reference) 1.00 ------------- ----- -------------
Daily smoking
 Daily 0.75 (0.48–1.17) 1.03 (0.55–1.93)
 Non-daily (reference) 1.00 ------------- ----- -------------
Educationc
 Low 1.08 (0.76–1.53) 1.05 (0.70–1.56)
 Middle 1.09 (0.78–1.53) 0.90 (0.60–1.35)
 High (reference) 1.00 ------------- ----- -------------
Geographic Region
 Midwest 1.00 (0.69–1.47) 0.82 (0.54–1.22)
 Northeast 0.96 (0.64–1.44) 0.87 (0.58–1.31)
 South 1.16 (0.82–1.65) 0.74 (0.51–1.08)
 West (reference) 1.00 ------------- ----- --------------
Brand Type
 Discount 0.57 (0.45–0.72) 5.58 (4.16–7.48)
 Premium (reference) 1.00 ------------- ----- --------------
*

Models also contain wave and time-in-sample.

a

Income defined as low: ≤ $29,999; medium:$30,000–$59,999; and high:≥$60,000.

b

Nicotine dependence is measured by the heaviness of smoking index (scored 0–6) and categorized as either low (<4) or high (≥4).

c

Education defined as: low= ≤ high school; moderate=some college/tech/trade school, no degree; high= university degree or greater