Table 2.

Association between plain packaging and prices per pack for single packs of 20 cigarettes and by price quintile in the United Kingdom: mean differences^a (March 2013–June 2017).

	All 20 packs	Quintile 1 (lowest price)	Quintile 2	Quintile 3	Quintile 4	Quintile 5 (highest price)
Plain pack	1.0 (< 0.001) [0.9 to 1.1]	2.6 (< 0.001) [2.4 to 2.7]	1.2 (< 0.001) [1.0 to 1.4]	0.7 (< 0.001) [0.5 to 0.9]	0.4 (< 0.001) [0.3 to 0.5]	0.4 (< 0.001) [0.3 to 0.4]
Adapted name	−2.8 (< 0.001) –2.9 to −2.7	–	−0.7 (< 0.001) –1.0 to −0.4	0.6 (< 0.001) 0.5–0.8	–	0.3 (0.048) 0.0 to 0.7
Plain pack adapted name	1.2 (< 0.001) [1.1 to 1.4]	–	–	–	–	–
Observations	12 372	2532	2409	2162	2389	2449

^aMean difference in price per pack in GBP obtained using the following covariates: costs of production, taxes, market share of the product, product ID, year and month. P‐value in parenthesis and 95% confidence intervals in squared brackets.