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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Contraception. 2010 Jan;81(1):35. doi: 10.1016/j.contraception.2009.07.001

Figure 1.

Figure 1

Mean bone density for 19–30 year-old participants, by current OC dose and duration category.a

Mean ± 95% Confidence Interval

○ Nonuser (N=110)

□ 30–35 mcg, ≤12mo (N=79)

Δ <30 mcg EE, ≤12mo (N=50)

■ 30–35mcg, >12mo (N=41)

▲ <30 mcg, >12mo (N=25)