Table 1. Baseline characteristics of study patients after 1:1 matching by age, gender, body mass index, index year, and physician.

Variable	Men		Women
	Smokers (%)	Non-smokers (%)	Smokers (%)	Non-smokers (%)
Age at index date
Age (mean, SD)	36.5 (12.5)	36.5 (12.5)	34.3 (13.1)	34.3 (13.1)
Age ≤30	38.2	38.2	48.2	48.2
Age 31–40	27.4	27.4	22.5	22.5
Age 41–50	19.3	19.3	16.1	16.1
Age 51–60	10.4	10.4	8.5	8.5
Age 61–70	4.7	4.7	4.7	4.7
BMI (mean, SD)	26.5 (4.4)	26.5 (4.4)	25.7 (5.5)	25.7 (5.5)
BMI ≤20	3.8	3.8	11.7	11.7
BMI 21–25	36.7	36.7	42.8	42.8
BMI 26–30	41.4	41.4	26.9	26.9
BMI 31–35	13.6	13.6	11.8	11.8
BMI >35	4.5	4.5	6.8	6.8