Research Article

Body Mass Index Trajectories among Middle-Aged and Elderly Canadians and Associated Health Outcomes

Table 3

Weighted prevalence and odds of self-reported health outcomes when respondents turned 55 years, by BMI trajectory group (NPHS, 1994–2011).

Health outcomeThe trajectory of BMI-trend

⁢N-S ()OV-S ()OB I-S ()⁢OB II-S ()
%aORb% OR (95% CI)% OR (95% CI) % OR (95% CI) <.0001
Asthma 4.4 Ref. 7.1 1.65 (1.63–1.67) 9.2 2.18 (2.16–2.21)10.8 2.60 (2.56–2.63)<.0001
Arthritis or rheumatism20.9 Ref. 26.9 1.39 (1.39–1.40)30.3 1.65 (1.64–1.66)50.0 3.79 (3.76–3.83)<.0001
Back problems19.6 Ref. 18.1 0.91 (0.90–0.91)23.9 1.29 (1.28–1.30)23.7 1.28 (1.26–1.29)<.0001
Hypertension12.3 Ref. 22.1 2.03 (2.02–2.04)28.5 2.86 (2.84–2.88)52.9 8.03 (7.95–8.11)<.0001
Chronic bronchitis or emphysema 2.8 Ref. 3.1 1.12 (1.10–1.14) 1.1 0.38 (0.37–0.39) 6.7 2.52 (2.48–2.57)<.0001
Diabetes 1.4 Ref. 5.7 4.30 (4.22–4.37) 9.6 7.49 (7.36–7.62)26.6 25.56 (25.10–26.03) <.0001
Heart disease 2.5 Ref. 5.5 2.29 (2.26–2.32) 6.0 2.49 (2.45–2.52) 8.7 3.75 (3.69–3.82) <.0001
Cognitive issue20.5 Ref. 21.5 1.06 (1.05–1.07)24.7 1.27 (1.26–1.28)28.9 1.58 (1.56–1.59) <.0001
Emotional issue
Happy79.7 Ref.77.5 Ref.80.4 Ref.64.9 Ref. <.0001
Somewhat happy17.8 Ref.19.2 1.12 (1.11–1.12)16.0 0.90 (0.89–0.90)27.2 1.88 (1.87–1.90)
Unhappy 2.5 Ref. 3.2 1.33 (1.31–1.35) 3.6 1.43 (1.40–1.45) 7.9 3.90 (3.83–3.98)
Self-rated health
Excellent23.0 Ref.18.8 Ref.16.2 Ref. 6.4 Ref. <.0001
Very good38.8 Ref.37.3 1.18 (1.17–1.18)38.6 1.41 (1.40–1.42)24.7 2.27 (2.24–2.31)
Good28.7 Ref.30.7 1.31 (1.30–1.32)32.5 1.61 (1.59–1.62)40.1 5.00 (4.91–5.08)
Fair 6.9 Ref. 8.5 1.49 (1.48–1.51)10.3 2.11 (2.08–2.13)22.3 11.48 (11.27–11.69)
Poor 2.4 Ref. 4.6 2.33 (2.30–2.36) 2.3 1.35 (1.32–1.37) 6.5 9.53 (9.30–9.76)

value < .10, value < .01.