Table 2 Median cotinine concentrations (ng/ml) 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 | 146.5 (86.8, 220.5) | - |
Individual characteristics | |||
Sex | |||
men | 104 | 172.6 (115.3, 255.4) | < 0.001 |
women | 107 | 120.7 (69.6, 208.8) | |
Age (years) | |||
17-44 | 120 | 127.1 (82.8, 297.1) | 0.090 |
45-64 | 79 | 171.1 (103.9, 239.4) | |
≥ 65 | 12 | 135.8 (54.6, 215.7) | |
Educational level | |||
less than primary and primary | 68 | 173.9 (106.1, 295.8) | 0.194 |
secondary | 74 | 134.4 (86.5, 216.2) | |
university | 68 | 137.7 (67.4, 194.7) | |
Body mass index (kg/m 2)‡ | |||
underweight | 4 | 132.3 (72.4, 281.8) | 0.151 |
normal | 116 | 127.9 (85.1, 219.5) | |
overweight | 66 | 155.3 (88.7, 223.3) | |
obese | 21 | 166.6 (91.2, 224.2) | |
Type of tobacco | |||
Type of cigarettes | |||
regular | 148 | 149.5 (96.6, 229.8) | 0.313 |
non-regular (light, ultralight, etc.) | 63 | 128.4 (74.7, 214.8) | |
Type of tobacco | |||
blond | 171 | 137.0 (84.5, 219.6) | 0.043 |
black | 40 | 180.2 (128.6, 259.5) | |
Use of filter tip | |||
with filter | 209 | 146.9 (89.7, 220.5) | 0.157 |
without filter | 2 | 41.9 (12.7, 71.0) | |
Smoking characteristics | |||
Frequency of inhalation | |||
all the time | 21 | 166.6 (101.5, 207.1) | 0.473 |
half the time | 150 | 137.1 (83.1, 220.2) | |
seldom | 39 | 177.3 (108.6, 248.8) | |
Depth of inhalation | |||
light | 22 | 151.3 (80.6, 306.9) | 0.957 |
moderate | 78 | 142.8 (98.8, 220.2) | |
deep | 108 | 146.7 (84.8, 213.7) |