Table 2. Baseline characteristics and cancer follow-up by sex and categories of body mass index (BMI) in study participants (n = 98 132) compared to excluded subjects with missing BMI (n = 557) from 8 Australia/New Zealand (ANZ) cohorts in the Asia Pacific Cohort Studies Collaboration.

	Body mass index (kg/m2)
ANZ cohorts	Missing	12.0-18.4	18.5-24.9	25.0-29.9	30.0-60.0
Males
No. of participants	284	248	17888	26692	8883
No. of cancer deaths	38	15	671	965	300
Person yrs, follow-up	3939	2019	167895	214069	63895
Age (yrs) at baseline, mean (SD)	53.0 (20.6)	58.0 (19.0)	52.3 (17.0)	56.0 (14.4)	56.8 (13.5)
BMI (kg/m2), mean (SD)	-	17.4 (1.0)	23.0 (1.5)	27.2 (1.4)	32.6 (2.7)
Weight (kg), mean (SD)	76.3 (10.4)	52.0 (5.9)	69.7 (7.2)	81.4 (7.6)	96.5 (11.5)
Height (m), mean (SD)	1.75 (0.08)	1.72 (0.08)	1.74 (0.07)	1.73 (0.07)	1.72 (0.07)
Smoking status (%)
Not current smoker	73.9	62.1	74.9	82.0	82.0
Current smoker	23.9	37.9	25.0	17.9	17.9
Unknown	2.1	0.0	0.1	0.1	0.1
Drinking status (%)
Not current drinker	37.0	42.3	37.4	44.2	47.0
Current drinker	62.3	54.0	56.0	51.2	50.7
Unknown	0.7	3.6	6.5	4.6	2.4
Females
No. of participants	273	661	20967	14698	8095
No. of cancer deaths	17	18	496	381	235
Person yrs, follow-up	4173	7859	230986	146164	75643
Age (yrs) at baseline, mean (SD)	51.8 (21.2)	45.7 (16.3)	48.1 (13.5)	53.8 (11.6)	54.4 (10.5)
BMI (kg/m2), mean (SD)	-	17.6 (0.8)	22.4 (1.6)	27.1 (1.4)	33.9 (3.7)
Weight (kg), mean (SD)	63.1 (11.9)	46.6 (4.5)	58.8 (6.0)	69.4 (6.4)	85.1 (11.4)
Height (m), mean (SD)	1.62 (0.06)	1.62 (0.07)	1.62 (0.06)	1.60 (0.06)	1.58 (0.07)
Smoking status (%)
Not current smoker	74.0	72.2	83.2	87.8	89.7
Current smoker	23.8	27.5	16.6	12.1	10.2
Unknown	2.2	0.3	0.2	0.1	0.1
Drinking status (%)
Not current drinker	52.7	51.3	60.5	73.5	80.7
Current drinker	45.8	41.3	34.3	23.4	17.9
Unknown	1.5	7.4	5.2	3.2	1.4

^*Sub-sample of participants with missing BMI, but available data on either weight or height