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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Psychol Med. 2012 May 21;43(2):341–350. doi: 10.1017/S0033291712000967

Figure 1. Duration of Subsyndromal Symptoms in the First 6 Months Following Remission and Recurrence Rates in the Ensuing 2 Years.

Figure 1

Survival curves of time to recurrence of elderly depressed patients who experience 0, 4, 8, and 12 weeks of subsyndromal symptoms during the first 6 months following remission. The survival curves start 6 months after remission (0 days) and end 2 years later. Calculated by the Proportional Hazards Model: “Duration Subsyndromal Symptoms” associated with time to recurrence. Proportional Hazards Likelihood Ratio for the overall model: χ2==13.74, df=1, p<0.0002; for Duration Subsyndromal Symptoms: χ2=18.28, df=1, p=<.0001.