Fig 1.
Overview of exposure and follow-up.
Exposure was recorded as the change in body weight between two subsequent surveys. Subjects were followed until the date of a third survey or December 31, 2012. Subjects who attended three or more subsequent surveys thus contributed with multiple exposures and follow-up periods.
Fig 2.
Distribution of weight change (in kgs) in the study population
Table 1.
Baseline Characteristics of the Study Population Across Categories of Weight Change
Table 2.
Incidence Rates (IR) and Hazard Ratios (HR) with 95% Confidence Intervals (CI) for Venous Thromboembolism (VTE) According to Changes in Body Weight, Stratified by BMI at the Start of the Weight Change Interval
Fig 3.
Hazard Ratios for Venous Thromboembolism According to Changes in Body Weight and Body Mass Index Measured at the Start of the Weight Change Interval.
Subjects with BMI <25 kg/m2 and 0–7.4 kg weight gain were used as reference. Age as time-scale, adjusted for sex.
Table 3.
Crude Incidence Rates (IR) and Hazard Ratios (HR) with 95% Confidence Intervals (CI) for Provoked and Unprovoked Venous Thromboembolism (VTE) According to Changes in Body Weight.
Stratified According to BMI at the start of the weight change interval.
Table 4.
Hazard Ratios (HR) with 95% Confidence Intervals (CI) for Provoked and Unprovoked Venous Thromboembolism According to Changes in Body Weight, Competing Risk by Cancer and Competing risk by Death Analysis