Table 5.

HRs and 95% CIs of lymphoid neoplasms by BMI category

BMI (kg/m2)
<18.518.5-22.923.0-24.925.0-29.9≥30.01-unit increase
Lymphoid neoplasms
    Total
        Person-years37,898549,106336,345330,90934,563
        No. of cases11148918213
        HR (95% CI)*1.02 (0.55-1.92)1.02 (0.79-1.33)1.00 (reference)0.92 (0.68-1.24)1.44 (0.81-2.59)1.00 (0.97-1.04)
    Men
        Person-years15,026250,578167,153155,54712,251
        No. of cases78459416
        HR (95% CI)*1.14 (0.52-2.50)0.93 (0.67-1.30)1.00 (reference)0.76 (0.51-1.14)1.43 (0.62-3.33)0.98 (0.93-1.03)
    Women
        Person-years22,872298,529169,191175,36222,312
        No. of cases46432417
        HR (95% CI)*0.90 (0.32-2.54)1.19 (0.78-1.82)1.00 (reference)1.16 (0.73-1.84)1.55 (0.68-3.51)1.02 (0.97-1.07)
    ML
        Person-years37,898549,106336,345330,90934,563
        No. of cases9115626011
        HR (95% CI)*1.25 (0.62-2.51)1.18 (0.87-1.61)1.00 (reference)0.97 (0.68-1.39)1.74 (0.91-3.32)1.00 (0.96-1.04)
    PCM
        Person-years37,898549,106336,345330,90934,563
        No. of cases23329222
        HR (95% CI)*0.56 (0.13-2.36)0.70 (0.42-1.15)1.00 (reference)0.79 (0.45-1.38)0.76 (0.18-3.20)1.01 (0.95-1.09)
    NHL
        Person-years37,898549,106336,345330,90934,563
        No. of cases57851495
        HR (95% CI)*0.84 (0.33-2.11)0.97 (0.68-1.38)1.00 (reference)0.98 (0.66-1.45)1.00 (0.40-2.52)1.02 (0.97-1.07)
  • *HRs were adjusted for age at baseline (continuous), gender (men or women), study area (10 public health center areas), number of pack-years (0, 1-19, 20-29, 30-39, and ≥40 pack-years, as an ordinal variable), alcohol categories at baseline (nondrinkers, occasional drinkers, and 1-149, 150-299, and ≥300 g/wk, as an ordinal variable).