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. 2019 Jul 15;137(2):169–176. doi: 10.1590/1516-3180.2018.0363070219

Table 2. Median C-reactive protein level and interquartile range (IQR) according to sociodemographic characteristics, behaviors, anthropometric measurements, health conditions and consumption of ultra-processed foods, ELSA-Brasil (2008-2010) .

C-reactive protein level (mg/l)
Male (n = 4,029) Median (IQR) P-value Female (n = 4,439) Median (IQR) P-value
Age (years)
35 to 44 0.98 (0.56-2.14) 0.0001 1.25 (0.58-3.40) 0.0002
45 to 54 1.26 (0.68-2.66) 1.46 (0.74-3.40)
55 to 64 1.32 (0.70-2.55) 1.55 (0.78-3.37)
65 to 74 1.24 (0.70-3.11) 1.78 (0.90-3.40)
Race/skin color
White 1.18 (0.64-2.37) 0.0003 1.47 (0.71-3.29) 0.0001
Brown 1.29 (0.68-2.76) 1.43 (0.72-3.28)
Black 1.22 (0.66-2.82) 1.96 (0.83-4.45)
Asian 0.77 (0.39-1.52) 0.92 (0.43-1.72)
Indigenous 1.25 (0.68-2.54) 1.08 (0.81-2.26)
Educational attainment
University degree 1.05 (0.60-2.14) 0.0001 1.33 (0.66-3.07) 0.0001
High school 1.30 (0.69-2.68) 1.65 (0.77-3.82)
Completed elementary school 1.33 (0.72-3.03) 1.93 (0.89-4.39)
Incomplete elementary school 1.80 (0.83-3.63) 2.14 (1.03-5.16)
Smoking
Never smoked 1.05 (0.59-2.13) 0.0001 1.41 (0.69-3.28) 0.0003
Former smoker 1.23 (0.68-2.64) 1.55 (0.76-3.34)
Current smoker 1.81 (0.93-3.65) 1.81 (0.79-3.95)
Physical activity
None 1.41 (0.71-3.02) 0.0001 1.77 (0.81-3.98) 0.0001
Light intensity 1.17 (0.65-2.37) 1.40 (0.71-3.03)
Moderate intensity 1.03 (0.58-2.06) 1.11 (0.59-2.65)
High intensity 0.99 (0.53-2.14) 1.03 (0.48-1.99)
BMI (kg/m2)
Eutrophic 0.86 (0.48-1.73) 0.0001 0.92 (0.49-1.90) 0.0001
Overweight 1.30 (0.73-2.64) 1.76 (0.93-3.34)
Obese 1.97 (1.12-3.98) 3.91 (1.98-6.98)
Percentage energy contribution from ultra-processed foods
Tercile 1 (lowest) 1.22 (0.67-2.61) 0.09 1.45 (0.69-3.24) 0.3000
Tercile 2 1.20 (0.64-2.53) 1.47 (0.72-3.42)
Tercile 3 (highest) 1.18 (0.62-2.32) 1.50 (0.74-3.59)

Median (IQR): median and interquartile range. The differences between median C-reactive protein levels according to variables were tested using the Kruskal-Wallis test. Differences were considered significant at P-values < 0.05. BMI = body mass index (kg/m2).