Table 4

Exterior and interior display and advertising features at e-cigarette retailers, by city, school type and city characteristics

nDisplay outside (%)Display inside (%)Ads (%)
Inside displayCashier areaPower wallWithin 30 cm from sweets, drinks or snacksAny ad inside or outsideAds outsideAds inside
By city
 Guangzhou, Guangdong185.694.483.333.333.311.111.111.1
 Shenyang, Liaoning
 Jinan, Shandong20.0100.00.0100.
 Kunming, Yunnan
 Guilin, Guangxi450.
 Kaifeng, Henan10.0100.
 Baiyin, Gansu
 χ2 (p value)N/AN/AN/AN/AN/AN/AN/AN/A
By urban/rural
 Urban (0–100 m)5616.185.758.933.933.910.73.610.7
 Rural (0–250 m)40.0100.0100.
 χ2 (p value)0.380.420.190.570.110.490.700.49
By school type
 Junior high schools258.
 Senior high schools2626.9100.073.138.530.
 Vocational senior high schools90.066.755.633.333.322.20.022.2
 χ2 (p value)
By geographical location
 Central (Kaifeng)10.0100.
 East (Shanghai, Jinan)147.164.328.642.928.614.30.014.3
 North (Beijing)30.0100.00.033.333.333.30.033.3
 Northeast (Shenyang)
 Northwest (Baiyin)
 South (Guangzhou)185.694.483.333.333.311.111.111.1
 Southwest (Chongqing, Kunming, Guilin)2429.291.775.
 χ2 (p value)N/AN/AN/AN/AN/AN/AN/AN/A
By city population
 <5 million people (Kaifeng, Baiyin)10.0100.
 5–10 million people (Shenyang, Jinan, Kunming, Guilin)633.383.333.366.716.
 >10 million people (Shanghai, Beijing, Guangzhou, Chongqing)5313.286.866.
 χ2 (p value)N/AN/AN/AN/AN/AN/AN/AN/A
By economic development type
 Less developed cities (Chongqing, Shenyang, Kunming, Guilin, Kaifeng, Baiyin)2528.
 Developed cities (Shanghai, Beijing, Guangzhou, Jinan)355.782.954.337.131.414.35.714.3
 χ2 (p value)0.020.300.310.290.820.190.220.19
  • e-cigarette, electronic cigarette; N/A, not applicable.