Table 3.

Odds Ratio (OR) for VTE (venous thromboembolism) according to multimorbidity (score ≥2) and age stratified according to Interquartile Range (IQR1–4)

Age groups	OR (95% CI)
	No VTE	VTE	Model 1	Model 2
IQR1	135 989	4032	3.35 (3.21 to 3.50)	3.14 (3.01 to 3.29)
IQR2	106 001	1857	3.43 (3.24 to 3.64)	3.14 (2.96 to 3.34)
IQR3	104 897	919	3.48 (3.21 to 3.78)	3.09 (2.84 to 3.37)
IQR4	86 872	175	3.52 (2.93 to 4.22)	3.07 (2.56 to 3.7)

ORs with 95 % CI for multimorbidity scores. Reference with no diseases (score=0). Total observations n=2 694 442.

Model 1 is a crude model (univariable). Model 2 is an adjusted model (multivariable), with adjustments for sex, year of birth, county and educational attainment.

IQR1: 1947–1972, IQR2: 1972–1983, IQR3: 1983–1993 and IQR4: 1993–2005.

CI, Confidence Interval.