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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