Table 1 Median number of cigarettes smoked in the last 24 hours and interquartile ranges in adult daily smokers, according to individual characteristics, type of tobacco, and smoking characteristics.
From: Salivary cotinine concentrations in daily smokers in Barcelona, Spain: a cross-sectional study
n | median(IQR*) | p-value† | |
|---|---|---|---|
Total | 211 | 15.0 (8.0, 20.0) | - |
Individual characteristics | |||
Sex | 0.002 | ||
Men | 104 | 20.0 (10.0, 25.0) | |
women | 107 | 10.0 (6.0, 20.0) | |
Age (years) | 0.073 | ||
17-44 | 120 | 12.5 (8.3, 20.0) | |
45-64 | 79 | 19.0 (10.0, 25.0) | |
≥ 65 | 12 | 8.5 (4.8, 18.0) | |
Educational level | 0.162 | ||
Less than primary and primary | 68 | 16.5 (10.0, 20.0) | |
secondary | 74 | 14.5 (8.8, 20.0) | |
university | 68 | 11.5 (6.0, 20.0) | |
Body mass index (kg/m 2)‡ | 0.705 | ||
underweight | 4 | 10.0 (7.0, 17.5) | |
normal | 116 | 14.0 (8.0, 20.0) | |
overweight | 66 | 15.0 (8.0, 20.8) | |
obese | 21 | 20.0 (8.5, 30.0) | |
Type of tobacco | |||
Type of cigarettes | 0.040 | ||
regular | 148 | 15.0 (8.5, 20.0) | |
non-regular (light, ultralight, etc.) | 63 | 10.0 (8.0, 20.0) | |
Type of tobacco | 0.003 | ||
blond | 171 | 12.0 (8.0, 20.0) | |
black | 40 | 20.0 (10.5, 28.8) | |
Use of filter tip | 0.207 | ||
with filter | 209 | 15.0 (8.0, 20.0) | |
without filter | 2 | 7.0 (4.0, 10.0) | |
Smoking characteristics | |||
Frequency of inhalation | 0.014 | ||
all the time | 21 | 20.0 (10.5, 20.0) | |
half the time | 150 | 11.0 (7.0, 20.0) | |
seldom | 39 | 20.0 (12.0, 30.0) | |
Depth of inhalation | 0.739 | ||
light | 22 | 16.0 (10.0, 22.5) | |
moderate | 78 | 12.0 (7.9, 20.0) | |
deep | 108 | 15.0 (8.0, 20.0) |