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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: J Pain Symptom Manage. 2013 Oct 5;47(6):1078–1090. doi: 10.1016/j.jpainsymman.2013.07.004

Table 3.

Adjusted Association of Baseline Sociodemographic and Clinical Characteristics With Clinical Trial Enrollment After Propensity Weighting; N = 352a

Enrollment in a Clinical Trial at Baseline

Patient Characteristic In a Trial
n=37
n (%)
Not a in Trial
n=315
n (%)
P-value
Demographic Characteristics
Age, yrs, mean±SD 55.94±25.04 55.94±8.48 1.000
Male gender 83.43 (50.00%) 83.43 (50.00%) 1.000
Income >$31,000 67.23 (45.76%) 79.70 (54.24%) 0.178
Married 116.2 (50.01%) 116.1 (49.99%) 0.994
Health Insurance 157.0 (50.00%) 157.0 (50.00%) 1.000
Education, yrs, mean±SD 13.59±7.60 13.9±2.57 1.000
Race/Ethnicity
  White 135.1 (50.00%) 135.1 (50.00%) 1.000
  Black 19.16 (50.00%) 19.16 (50.00%) 1.000
  Hispanic 14.25 (50.00%) 14.25 (50.00%) 1.000
  Asian 7.45 (60.43%) 4.88 (39.57%) 0.456
Religion
  Catholic 65.83 (50.00%) 63.83 (50.00%) 1.000
  Protestant 21.37 (50.00%) 21.37 (50.00%) 1.000
  Baptist 17.17 (46.15%) 20.04 (53.85%) 0.619
  Pentecostal 3.89 (61.78%) 2.41 (38.22%) 0.551
  Jewish 22.21 (50.00%) 22.21 (50.00%) 1.000
  Muslim 5.45 (58.33%) 3.89 (41.67%) 0.606
  None 8.04 (38.52%) 12.83 (61.48%) 0.279
Recruitment Site
  Yale Cancer Center 81.34 (50.00%) 81.34 (50.00%) 1.000
  Veterans Affairs CCC 0.00 (0.00%) 3.48 (100.00%) 0.061
  Simmons Cancer Center 20.36 (50.43%) 20.01 (49.57%) 0.954
  Parkland Hospital 29.36 (50.00%) 29.36 (50.00%) 1.000
  DFCI/MGH 4.57 (31.01%) 10.18 (68.99%) 0.136
  New Hampshire Oncology 18.78 (50.00%) 18.78 (50.00%) 1.000
Clinical Characteristics
Cancer Type
  Lung 20.39 (50.00%) 20.39 (50.00%) 1.000
  Pancreatic 33.41 (50.00%) 33.41 (50.00%) 1.000
  Colon 19.66 (50.83%) 19.02 (49.17%) 0.912
  Gastric 8.31 (50.00%) 8.31 (50.00%) 1.000
  Esophageal 9.91 (50.00%) 9.91 (50.00%) 1.000
  Biliary 0.00 (0.00%) 4.64 (100.0%) 0.030
  Brain 8.47 (50.00%) 8.47 (50.00%) 1.000
Performance status, mean ± SD
  Karnofsky Score 68.95±41.09 68.77±13.79 0.925
  ECOG Score 1.52±2.06 1.52±0.75 0.979
Charlson Comorbidity Index 7.58±5.29 7.58±1.93 1.000
McGill QOL, mean ± SD
  Sum Score 7.05±2.34 7.05±1.16 1.000
  Physical function 5.89±4.23 5.53±2.06 0.162
  Symptoms 5.86±3.40 5.86±1.64 1.000
  Psychological 7.57±4.75 7.78±1.65 0.387
  Support 8.51±3.37 8.71±1.37 0.253
Psychosocial Characteristics
Brief COPE, mean ± SD
  Emotional support-based coping 2.00±1.34 1.86±0.67 0.095
  Active coping 2.47±1.42 2.55±0.46 0.250
  Behavioral disengagement 0.20±0.99 0.15±0.28 0.332
RCOPE, mean ± SD
  Positive RCOPE 10.09±15.42 9.55±4.87 0.449
  Negative RCOPE 1.25±5.95 1.49±2.29 0.452
EOL Care Preferences and Advance Care Planning
Terminal illness acknowledgement 59.82 (52.86%) 53.34 (47.17%) 0.459
Desires prognostic information 94.76 (48.68%) 99.92 (51.32%) 0.580
Prior EOL discussion 39.63 (50.00%) 39.63 (50.00%) 1.000
Preferences for EOL care
  Values life-extension over comfort 54.09 (44.44%) 67.62 (55.56%) 0.129
  Against ICU death 58.30 (49.30%) 59.95 (50.70%) 0.853
  Prefer ventilator 60.07 (54.48%) 50.18 (45.52%) 0.256
  Prefer chemotherapy 156.5 (51.30%) 148.5 (48.70%) 0.214
  Prefer feeding tube 67.50 (49.35%) 69.29 (50.65%) 0.845
  DNR order 69.83 (50.97%) 67.19 (49.03%) 0.772
  Living will & health care proxy 100.5 (50.28%) 99.33 (49.72%) 0.904
a

N=352, decreased from 358 because of six patients with missing propensity score data.