Table 2

Smoking topography for UBMCs and menthol cigarette alternatives (n=98)

UBMCmRYO cigarettemFLCNMC
M (SD)M (SD)M (SD)M (SD)
Average puff duration* (s)1.99 (0.56)†2.06 (0.64)†‡2.65 (0.90)§¶‡1.87 (0.60)¶†
Average flow rate (ml/s)23.77 (6.98)†24.89 (7.53)†‡16.97 (5.42)§¶‡22.07 (7.22)¶†
Average interpuff interval (s)27.54 (1.71)†27.54 (1.22)†26.35 (2.64)§¶‡27.77 (1.58)†
Average puff volume (mL)45.74 (13.49)†‡48.19 (12.40)†‡42.53 (12.77)§¶‡38.96 (12.10)§¶†
Maximum puff volume (mL)63.16 (18.81)†‡63.94 (15.23)†‡56.59 (18.71)§¶55.92 (16.16)§¶
Total inhaled volume (mL)462.56 (138.46)†‡484.78 (124.38)†‡434.66 (127.95)§¶‡389.33 (122.21)‡§†
CO boost (ppm)8.10 (3.92)†7.36 (2.98)†9.30 (4.35)§¶‡7.71 (2.91)†
  • Mean (M) and SDs for topography measures. P values estimated from repeated measures analysis of variance with Tukey adjustment for all pairwise comparisons. All measures were winsorised at the 1st and 99th percentiles. Superscripts denote differences in pairwise comparisons between study products at the p<0.05 level.

  • *Variable log transformed for analysis. See online supplemental table 2 for specific p values.

  • †Differs from mFLC.

  • ‡Differs from NMC.

  • §Differs from UBMC.

  • ¶Differs from mRYO.

  • mFLC, menthol filtered little cigar; mRYO, menthol roll-your-own; NMC, non-menthol cigarette; UBMC, usual brand menthol cigarette.