Table 2

Characteristics of participating patients
Characteristic Interactive-multimedia arm (n = 294) PSA arm (n = 286) Attention control arm (n = 287) p-value*
% female 162 (55.1) 159 (55.6) 165 (57.5) 0.83
Mean age, yrs (SD) 51.5 (12.4) 52.2 (11.4) 51.7 (11.5) 0.82
Race/ethnicity (%) 0.86
   Hispanic or Latino 43 (14.6) 40 (14.0) 40 (13.9)
   Black, not Hispanic 61 (20.7) 50 (17.5) 57 (19.9)
   Asian or other 25 (8.5) 32 (11.2) 33 (11.5)
   White 165 (56.1) 164 (57.3) 157 (54.7)
Income (%) 0.70
   Less than $35,000 106 (36.0) 110 (38.5) 101 (35.2)
   $35,000 or more 188 (64.0) 176 (61.5) 186 (64.8)
% with college or graduate degree 126 (43.3) 123 (43.2) 142 (49.6) 0.20
% living with spouse or partner 162 (55.9) 160 (56.1) 165 (57.7) 0.89
Site of care (%) 0.51
   Specialty Practice 119 (40.5) 130 (45.5) 114 (39.7)
   Academic 94 (32.0) 89 (31.1) 105 (36.6)
   HMO 32 (10.9) 30 (10.5) 24 (10.9)
   VA 49 (16.7) 37 (12.9) 44 (15.3)
PHQ-8 (SD)
   At enrollment 7.9 (5.4) 7.0 (5.1) 7.2 (5.4) 0.11
   At index visit 7.9 (5.5) 6.7 (5.3) 7.1 (5.4) 0.05
   *Correlation 0.84 0.84 0.86
PHQ-9 category, N (%) 0.17
   <5 90 (30.6) 109 (38.1) 109 (38.0)
   5-9 99 (33.7) 103 (36.0) 89 (31.0)
   10-14 66 (22.4) 43 (15.0) 56 (19.5)
   15+ 39 (13.3) 31 (10.8) 33 (11.5)
SF-12 at enrollment, Mean (SD)
Mental Health Score (n = 840) 44.8 (11.8) 47.7 (11.6) 46.3 (12.7) 0.02
Physical Health Score (n = 840) 41.4 (13.5) 41.8 (13.7) 41.2 (13.2) 0.86
Somatic Symptom Severity at Index Visit†, Mean (SD) 7.3 (2.0) 7.3 (2.0) 7.4 (1.9) 0.90
Depression Stigma at Index Visit, Mean (SD) 16.5 (4.0) 16.9 (3.8) 16.5 (3.8) 0.42
Self-efficacy for patient-physician interactions (PEPPI) regarding mental health, Mean (SD) 21.9 (5.8) 21.7 (5.6) 21.8 (5.9) 0.86

*To obtain p-values, the F-test statistic in a one-way ANOVA was used for comparing means and the chi-square test for association was used for categorical variables.

†Reflects how much patient was bothered in the past month (theoretical range from 4 to 12) by stomach pain; back pain; pain in arms, legs or joints, and headaches.

Tancredi et al.

Tancredi et al. BMC Health Services Research 2013 13:141   doi:10.1186/1472-6963-13-141

Open Data