Table 3

Factors associated with participants who received their most recent cigarettes as gifts and choosing their preferred brand based on cigarette received as gifts
Covariate Received their most recent cigarettes as gifts Chose their preferred brand because of gifts
Bivariate Multivariate Bivariate Multivariate
% row OR (95% CI) AOR (95% CI) % row OR (95% CI) AOR (95% CI)
City
 Beijing 7.5% 1 10.7% 1 1
 Shenyang 3.9% 0.65 (0.20, 1.27) 0.35 (0.12, 1.05) 7.8% 0.70 (0.37, 1.32) 0.62 (0.30, 1.26)
 Shanghai 1.3% 0.21 (0.05, 0.49)** 0.20 (0.06, 0.66)** 2.5% 0.22 (0.16, 0.40)*** 0.20 (0.08, 0.49)**
 Changsha 2.2% 0.29 (0.11, 0.70)** 0.42 (0.18, 1.01) 7.4% 0.66 (0.37, 1.18) 0.77 (0.43, 1.41)
 Guangzhou 1.0% 0.16 (0.04, 0.42)** 0.11 (0.03, 0.36)*** 10.4% 0.97 (0.63, 1.48) 1.01 (0.60, 1.67)
 Yinchuan 4.0% 0.53 (0.24, 1.11) 0.38 (0.15, 0.96)* 5.9% 0.52 (0.32, 0.84)** 0.48 (0.26, 0.88)*
Age
 Group 18-24 0.0% (omitted) (omitted) 7.8% 1 1
 Group 25-39 3.3% 1 1 7.8% 1.10 (0.28, 4.36) 2.03 (0.32, 12.76)
 Group 40-54 2.7% 1.09 (0.62, 1.92) 1.45 (0.74, 2.84) 4.6% 0.75 (0.19, 2.99) 1.42 (0.21, 9.42)
 Group 55+ 4.7% 1.76 (1.04, 2.97)* 2.51 (1.44, 4.37)** 10.0% 1.63 (0.40, 6.65) 3.22 (0.47, 22.08)
Sex
 Male 3.2% 1 1 6.8% 1 1
 Female 9.5% 2.49 (1.33, 4.64)** 2.64 (1.13, 6.16)* 12.0% 1.73 (1.05, 2.85)* 1.28 (0.69, 2.36)
Marital status
 Married or living together 3.6% 1 1 6.7% 1 1
 Divorced, separated, widowed 3.3% 0.84 (0.40, 1.76) 0.87 (0.35, 2.19) 10.9% 1.71 (0.95, 3.05) 1.64 (0.86, 3.12)
 Single 1.3% 0.31 (0.08, 1.25) 0.42 (0.06, 2.85) 6.1% 0.86 (0.37, 2.04) 1.22 (0.50, 3.00)
Income
 Low income 4.4% 1 1 8.6% 1 1
 Medium income 3.5% 0.90 (0.54, 1.51) 0.72 (0.38, 1.34) 7.2% 0.84 (0.52, 1.35) 0.84 (0.50, 1.43)
 High income 3.0% 0.87 (0.35, 2.14) 0.59 (0.22, 1.58) 6.3% 0.81 (0.49, 1.33) 0.81 (0.44, 1.46)
Education
 Low education level 3.5% 1 1 12.5% 1 1
 Medium education level 2.7% 0.88 (0.42, 1.80) 1.15 (0.54, 2.46) 5.7% 0.50 (0.35, 0.73)*** 0.63 (0.43, 0.92)*
 High education 5.8% 2.07 (1.05, 4.09)* 2.81 (1.33, 5.94)** 8.2% 0.71 (0.47, 1.07) 0.93 (0.60, 1.44)
Smoking frequency
 Everyday 2.8% 1 1 6.4% 1
 Some day 16.0% 6.38 (4.44, 9.17)*** 3.67 (2.45, 5.50)*** 17.5% 3.01 (1.90, 4.77)*** 2.43 (1.46, 4.03)**
Heaviness of smoking index (HSI)
 0 7.7% 1 1 9.7% 1 1
 1 3.9% 0.56 (0.33, 0.96)* 0.89 (0.51, 1.53) 7.8% 0.85 (0.49, 1.48) 1.08 (0.61, 1.91)
 2 2.4% 0.29 (0.17, 0.50)*** 0.48 (0.27, 0.85)* 5.3% 0.60 (0.34, 1.04) 0.67 (0.40, 1.12)
 3 3.2% 0.37 (0.21, 0.65)** 0.56 (0.32, 0.99)* 7.5% 0.75 (0.49, 1.15) 0.87 (0.54, 1.41)
 4 1.0% 0.13 (0.07, 0.22)*** 0.24 (0.14, 0.41)*** 4.8% 0.51 (0.29, 0.89)* 0.58 (0.37, 0.92)*
 5 2.1% 0.23 (0.10, 0.54)** 0.40 (0.14, 1.15) 4.0% 0.40 (0.18, 0.91)* 0.49 (0.22, 1.10)
 6 0.4% 0.03 (0.00, 0.24)** 0.07 (0.01, 0.56)* 6.5% 0.66 (0.32, 1.34) 0.71 (0.35, 1.45)
Years for smoking the brand most
 Less than one year 7.9% 1 1 12.4% 1 1
 1 to 3 years 4.6% 0.50 (0.29, 0.86)* 0.45 (0.25, 0.83)* 8.0% 0.69 (0.48, 0.99)* 0.68 (0.47, 0.99)*
 4 to 5 years 2.2% 0.26 (0.10, 0.69)** 0.16 (0.05, 0.45)** 4.9% 0.46 (0.24, 0.89)* 0.41 (0.20, 0.83)*
 6 to 10 years 2.3% 0.31 (0.15, 0.63)** 0.28 (0.11, 0.73)** 4.2% 0.39 (0.24, 0.62)*** 0.42 (0.25, 0.70)**
 More than 10 years 1.7% 0.19 (0.11, 0.35)*** 0.16 (0.08, 0.32)*** 5.8% 0.61 (0.35, 1.07) 0.59 (0.33, 1.05)

Significant levels for logistic regression: *p<0.05; **p<0.01; ***p<0.001.

Huang et al.

Huang et al. BMC Public Health 2012 12:996   doi:10.1186/1471-2458-12-996

Open Data