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Table 1 Sample Characteristics at Enrollment, Overall and by Randomization Group

From: Music-instruction intervention for treatment of post-traumatic stress disorder: a randomized pilot study

Characteristic At Enrollment Full Sample (n = 40) At Enrollment Immediate Entry (n = 25) At Enrollment Delayed Entry (n = 15) Completed Follow-up Sample (n = 33)
Age (μ ± SD) 51.3 ± 15.0 49.8 ± 15.6 53.8 ± 14.1 50.0 ± 14.8
Male (%) 90.0 88.0 93.3 90.9
Ethnicity (%)
 Hispanic 2.5 0.0 6.7 3.0
 Refused/Missing Information 10.0 12.0 6.7 9.1
Race (%)
 Caucasian/White 70.0 72.0 66.7 69.7
 African American/Black 25.0 24.0 26.7 24.2
 Refused/Missing Information 5.0 4.0 6.6 6.1
Marital Status (%)
 Married 45.0 40.0 53.3 48.5
 Living with a partner 7.5 8.0 6.7 6.1
 Separated or Divorced 30.0 24.0 40.0 30.3
 Widowed 2.5 4.0 0.0 0.0
 Single/Never married 15.0 24.0 0.0 15.2
Number of children (μ ± SD) 2.0 ± 1.9 1.6 ± 1.5 2.6 ± 2.4 2.0 ± 2.0
Household Size (μ ± SD) 2.2 ± 1.0 2.1 ± 0.8 2.3 ± 1.3 2.2 ± 1.0
Education (%)
 Less than high school 2.5 0.0 6.7 0.0
 High school 32.5 32.0 33.3 30.3
 Technical/Professional school 40.0 44.0 33.3 42.4
 College degree 22.5 20.0 26.7 24.2
 Refused/Missing Information 2.5 4.0 0.0 3.0
Work Status (%)
 Work full time 20.0 20.0 20.0 24.2
 Work part time 10.0 12.0 6.7 9.1
 Unemployed 5.0 4.0 6.7 3.0
 Student 10.0 12.0 6.7 12.1
 Retired, disability 45.0 40.0 53.3 39.4
 Retired, non-health related 5.0 8.0 0.0 6.1
 Other 5.0 4.0 6.6 6.0
War Era: OEF/OIF 27.5 20.0 32.0 30.3