Table 1 Demographic data, smoking history and maximal oxygen consumption (V̇O2max) at baseline for each smoking phenotype.

From: Improved aerobic capacity in a randomized controlled trial of noncombustible nicotine and tobacco products

 

Failures

(n = 32)

Reducers

(n = 88)

Quitters

(n = 67)

P value

Sex, F/M, No

8/24

39/49

36/31

0.027

Age (years)

47.2 ± 17.2

39.4 ± 16.5

39.8 ± 15.1

0.113

Body mass index (Kg/m2)

24.5 ± 4.2

24.4 ± 4.6

23.8 ± 4.0

0.617

Cigarettes/day (No.)

22 ± 8

23 ± 12

21 ± 9

0.769

Years of smoking

28.8 ± 14.8

21.3 ± 16.1

22.6 ± 14.8

0.073

Pack/years

34.2 ± 21.2

28.6 ± 29.4

25.8 ± 22.1

0.171

eCO (ppm)

28.8 ± 13.9

24.4 ± 11.9

27.5 ± 14.3

0.203

VO2max

(ml min−1 kg−1)

38.6 ± 5.7

38.6 ± 7.5

38.9 ± 6.3

0.704

  1. Values are expressed as frequencies or mean ± standard deviation.
  2. eCO Exhaled breath carbon monoxide; ppm Part per million.
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