Table IV.
Prevalence and Odds Ratios of Changes in the Trends of Last 30-day Purging to Lose Weight Between 1999/2001 and 2011/2013 Disaggregated by Sexual Orientation and Sex.
| Purged to Lose Weight last 30 days (%; [95% CI]) | Trend 99/01 – 03/05 | Trend 99/01 – 07/09 | Trend 99/01 – 11/13 | ||||
|---|---|---|---|---|---|---|---|
|
|
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| 1999/2001 | 2003/2005 | 2007/2009 | 2011/2013 | ORa (95% CI) | ORa (95% CI) | ORa (95% CI) | |
| Male | |||||||
| Heterosexual | 3.8 (3.1–4.6) | 3.0 (2.5–3.8) | 3.0 (2.4–3.8) | 1.9 (1.3–2.6) | 0.80 (0.59–1.08) | 0.79 (0.58–1.09) | 0.49 (0.33–0.74) |
| Bisexual | 10.6 (6.8–16.1) | 8.6 (2.2–28.5) | 16.6 (12.2–22.1) | 0.7 (0.6–0.7) | 0.82 (0.18–3.79) | 1.42 (0.75–2.68) | 0.05 (0.03–0.08) |
| Gay | 35.2 (26.7–44.8) | 15.3 (13.9–16.8) | 13.9 (9.5–19.8) | 10.3 (8.0–13.2) | 0.33 (0.23–0.48) | 0.29 (0.17–0.50) | 0.22 (0.14–0.34) |
| Female | |||||||
| Heterosexual | 8.2 (7.3–9.1) | 7.3 (6.4–8.3) | 5.5 (4.6–6.5) | 5.3 (4.5–6.3) | 0.89 (0.74–1.07) | 0.66 (0.53–0.81) | 0.63 (0.51–0.78) |
| Bisexual | 11.9 (7.5–18.4) | 23.1 (18.0–29.0) | 14.5 (10.9–19.0) | 11.9 (7.6–18.0) | 2.22 (1.21–4.09) | 1.21 (0.65–2.25) | 0.95 (0.47–1.93) |
| Lesbian | 10.7 (10.6–10.9) | 17.2 (5.4–42.7) | 13.5 (12.7–14.4) | 22.5 (12.6–36.8) | 2.08 (0.52–8.28) | 1.27 (1.08–1.50) | 2.57 (1.22–5.39) |
Note. Data were weighted and adjusted for age ethnicity (reference = White). OR in bold indicates p< .05; Each odds ratio parameter estimate compares changes in trends from the year indicated to the referent year (1999/2001) for each sexual orientation group separately.
a
OR: Adjusted Odds ratio.
CI: Confidence interval