. Author manuscript; available in PMC: 2011 Jun 1.

Published in final edited form as: Am J Geriatr Psychiatry. 2010 Jun;18(6):520–530. doi: 10.1097/JGP.0b013e3181cc0350

Table 5.

Depression Treatment over 12 Months among Intervention Patients

	Unadjusted Mean (SD) or No. (%)			Adjusted Analysis for Old versus Young^*
	ALL	Age 60+	Age 18-59	Statistic
Depression Treatment				Wald χ²=0.79, df=1, P=0.38
• PST and AM	230 (42.3%)	97 (45.8%)	133 (40.1%)
• Only PST	170 (31.3%)	56 (26.4%)	114 (34.3%)
• Only AM	39 (7.2%)	26 (12.3%)	13 (3.9%)
• none	105 (19.3%)	33 (15.6%)	72 (21.7%)
Number of months on AM, Mean (SD)	7.14 (4.33)	6.28 (4.5)	7.86 (4.06)	t=-1.44, df=267, P=0.16
Of PST patients, PST sessions				Wald χ²=0.07, df=1, P=0.80
• 1-3 sessions	82 (20.5%)	32 (20.9%)	50 (20.2%)
• 4 or more sessions	318 (79.5%)	121 (79.1%)	197 (79.8%)
Number of PST sessions, Mean (SD)	8.26 (6.19)	6.95 (4.59)	9.07 (6.89)	t=-0.58, df=398, P=0.56

Regression model or logistic regression model adjusted for type of trial. PST indicates problem solving therapy; AM, antidepressant medication; SD, standard deviation.