Figure 2.

Cumulative hazards of arthritis conditions by weight change category: Testing (A-B) risk reduction hypothesis and (C-D) residual risk hypothesis, NHANES 1988–1994 & 1999–2016 (n=13,669)

Figure 2 shows the function for cumulative hazard of developing an arthritis condition by weight change category for the two comparisons testing the risk reduction hypothesis (A&B) and the two comparisons testing the residual risk hypothesis (C & D). Weight was recorded at age 25 and 10 years prior to survey to determine weight change between young adulthood and midlife. The x-axis corresponds to years between the midlife BMI measure, when participants’ ages were 40–69 years, and the time of survey, when participants’ ages were 50–79 years. Models were adjusted for age at the midlife measure, gender, race, education, smoking status at the midlife measure, and survey year.