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Table 5 Adjusted odds ratio of lung cancer by histological type according to BMI categories

From: Body mass index and lung cancer risk: a pooled analysis based on nested case-control studies from four cohort studies

BMI (kg/m2) a Cases Controls Adjusted OR (95%CI) b
Adenocarcinoma
 Underweight 84 408 1.17 (0.89–1.54)
 Normal weight 623 4288 Reference
 Overweight 290 2752 0.74 (0.62–0.87)
 Obese 90 936 0.65 (0.50–0.85)
 Missing 95 106
Squamous cell carcinoma
 Underweight 56 408 1.06 (0.76–1.47)
 Normal weight 445 4288 Reference
 Overweight 259 2752 0.89 (0.74–1.08)
 Obese 85 936 0.77 (0.57–1.03)
 Missing 52 106
Large cell carcinoma
 Underweight 15 408 0.98 (0.55–1.76)
 Normal weight 117 4288 Reference
 Overweight 54 2752 0.69 (0.48–0.99)
 Obese 13 936 0.49 (0.26–0.92)
 Missing 22 106
Small cell carcinoma
 Underweight 14 408 0.62 (0.35–1.11)
 Normal weight 208 4288 Reference
 Overweight 155 2752 0.90 (0.70–1.15)
 Obese 57 936 0.79 (0.56–1.12)
 Missing 39 106
  1. aUnderweight (BMI < 18.5), normal weight (18.5 ≤ BMI < 25), overweight (25 ≤ BMI < 30) and obese (BMI ≥ 30)
  2. bAdjusted for age, gender, study center, time elapsed, pack-years of smoking and education level
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