Table 5 Lifestyle factors in microscopic colitis
Quartile range | Crude HR | 95% CI | Adjusted HR | 95% CI | |
|---|---|---|---|---|---|
Smoking | |||||
Never smokers | 1.00 | 1.00 | |||
Ex-smokers | 1.24 | (0.80–1.92) | 1.61 | (1.03–2.51) | |
Smokers | 2.10 | (1.39–3.16) | 2.53 | (1.66–3.84) | |
P for trend | <0.001 | <0.001 | |||
Alcohol habits (g/day) | |||||
Zero consumers | 1.00 | 1.00 | |||
Q1 | ⩽2.55 | 1.22 | (0.54–2.76) | 1.27 | (0.56–2.88) |
Q2 | 2.55–7.93 | 0.88 | (0.38–2.04) | 0.95 | (0.41–2.22) |
Q3 | 7.93–15.97 | 1.36 | (0.61–3.05) | 1.62 | (0.72–3.65) |
Q4 | 15.98–194 | 1.21 | (0.54–2.75) | 1.89 | (0.82–4.33) |
P for trend | 0.522 | 0.032 | |||
BMI (kg/m2) | |||||
Q1 | ⩽23.01 | 1.00 | 1.00 | ||
Q2 | 23.02–25.28 | 0.99 | (0.62–1.56) | 1.1 | (0.70–1.74) |
Q3 | 25.29–27.97 | 0.89 | (0.55–1.43) | 1.1 | (0.66–1.73) |
Q4 | ⩾27.98 | 0.83 | (0.51–1.35) | 0.94 | (0.57–1.53) |
P for trend | 0.395 | 0.903 | |||
Education | |||||
Elementary school or below | 1.00 | 1.00 | |||
Primary and secondary school | 0.87 | (0.56–1.34) | 0.83 | (0.54–1.28) | |
Upper secondary school | 1.37 | (0.80–2.36) | 1.77 | (1.02–3.08) | |
Further without degree | 1.26 | (0.71–2.22) | 1.41 | (0.79–2.50) | |
University degree | 0.70 | (0.39–1.26) | 0.80 | (0.44–1.45) | |
P for trend | 0.709 | 0.776 | |||
Physical activity (points) | |||||
Q1 | ⩽3950 | 1.00 | 1.00 | ||
Q2 | 3951–6750 | 1.24 | (0.78–1.99) | 1.28 | (0.80–2.04) |
Q3 | 6751–10 670 | 1.06 | (0.65–1.72) | 1.10 | (0.67–1.79) |
Q4 | ⩾10 671 | 0.96 | (0.58–1.59) | 1.01 | (0.61–1.66) |
P for trend | 0.706 | 0.852 | |||
