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. Author manuscript; available in PMC: 2010 Mar 10.
Published in final edited form as: Depress Anxiety. 2009;26(3):222–228. doi: 10.1002/da.20514

TABLE 1.

Baseline Sociodemographic and Clinical Characteristics

Overall (n = 191) Low pain interference (n = 75) High pain interference (n = 116) P-value
Sociodemographic characteristics
Mean age (SD) 44.2 (10.7) 43.2 (9.5) 44.8 (11.4) .31
Female, No. (%) 115 (81) 61 (81) 94 (81) .95
Caucasian, No. (%) 182 (95) 75 (100) 107 (92) <.05
>High school education, No. (%) 123 (64) 48 (64) 75 (65) .93
Married, No. (%) 140 (74) 60 (80) 80 (71) .12
Clinical characteristics
Anxiety diagnosis, No. (%) .69
 GAD 80 (42) 33 (44) 47 (41)
 PD 20 (10) 9 (12) 11 (9)
 GAD/PD 91 (48) 33 (44) 58 (50)
Major depressive disorder 108 (57) 34 (45) 74 (64) <.05
Mean SIGH-A (SD) 20.3 (6.4) 18.0 (5.0) 21.8 (6.8) <.001
Mean PDSS (SD) 8.5 (6.0) 7.3 (5.7) 9.2 (6.3) <.05
Mean GADS, (SD) 12.8 (4.3) 11.6 (3.7) 13.6 (4.4) <.01
Mean HRS-D (SD) 17.4 (6.5) 15.7 (5.9) 18.2 (6.7) <.05
Mean SF-12 MCS (SD) 30.3 (9.5) 30.5 (9.2) 30.2 (9.7) .86
Comorbid medical conditions
Mean no. comborbid conditions (SD) 2.4 (1.9) 2.0 (1.5) 2.8 (2.1) <.01
Have a painful conditiona, No. (%) 62 (32) 24 (32) 38 (33) .91
Baseline medications
Antidepressant medicationsb, No. (%) 60 (31.4) 23 (30.7) 37 (31.9) .86
Pain medication use, No. (%)
  Opiods 11 (5.8) 1 (1.3) 10 (8.6) .04
  Nonsteroidal anti-inflammatory 21 (11) 8 (10.7) 13 (11.2) .91
Baseline ADL limitations
Moderate activities, No. (%) <.001
  No, not limited at all 124 (64.9) 67 (89.3) 57 (49.1)
  Yes, limited a little 34 (17.8) 6 (8.0) 28 (24.1)
  Yes, limited a lot 33 (17.3) 2 (2.7) 31 (26.7)
Climbing several flights of stairs, No. (%) <.001
 No, not limited at all 109 (57.1) 59 (78.7) 50 (43.1)
 Yes, limited a little 39 (20.4) 11 (14.7) 28 (24.1)
 Yes, limited a lot 43 (22.5) 5 (6.7) 38 (32.8)
Baseline employment characteristics
Working, part-time or full-time, No. (%) 116 (61.0) 46 (61.0) 70 (60.0) .89
Hours worked per week, mean (SD) 39.2 (12.9) 39.0 (13.7) 39.3 (12.2) .90
Work days absent in past month, mean (SD) 3.0 (5.3) 1.9 (4.0) 3.6 (5.8) .02
a

Pain conditions: Osteoarthritis, rheumatoid arthritis, fibromyalgia, chronic low back pain, migraine headache, myalgia and myositis, cervicalgia, chronic foot pain, hip pain, shoulder pain, and plantar fasciitis.

b

Includes selective serotonin reuptake inhibitors (SSRI), serotonin-norepinephrine reuptake inhibitors (SNRI), tricyclic antidepressants, and other antidepressants.

GAD, generalized anxiety disorder; PD, panic disorder; SIGH-A, structured Interview Guide for the Hamilton Anxiety Rating Scale; PDSS, Panic Disorder Severity Scale; GADSS, Generalized Anxiety Disorder Severity Scale; HRS, Hamilton Depression Rating Scale; MCS, mental health component summary score.

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