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Table 1 Descriptive table. Comparison of all colorectal cancer (CRC) patients alive 30 days after the operation stratified by pre-existing psychiatric history. Similarly with restriction to elective patients only

From: Colon cancer patients with a serious psychiatric disorder present with a more advanced cancer stage and receive less adjuvant chemotherapy - A Nationwide Danish Cohort Study

  All CRC patients (cohort 1, N = 25,194) a Elective CRC patients only (N = 19,532 (after exclusion of missing) b Acute CRC patients only (N = 2456) (after exclusion of missing)b
  Psychiatric disorder c cases
(N = 422)
Referents without psychiatric disorders c
(N = 24,772)
p-value, d Psychiatric disorder c cases (N = 283) Referents without psychiatric disorders c (N = 19,249) p-value, d Psychiatric disorder c cases
(N = 62)
Referents without psychiatric disorders c (N = 2394) p-value, d
  N % N %   N % N %   N % N %  
Cancer stage
 Low, UICC stage (I, II) 163 38.63 11,058 44.64   148 52.30 10,276 53.38   12 19.35 667 27.86  
 Advanced stage (III,IV) 227 53.79 12,199 49.25 0.038 122 43.11 8261 42.92 0.72 48 77.42 1626 67.92 0.283
 Missing information 32 7.58 1515 6.12   13 4.59 712 3.70   <=3 g 2.93 101 4.22  
  Mean SD e Mean SD e   Mean SD e Mean SD e   Mean SD e Mean SD e  
Age (years) 68.08 12.33 70.42 11.31 0.001 66.69 11.55 69.87 11.08 0.001 69.82 13.71 71.31 12.11 0.171
Gender
 Men 171 40.52 13,226 53.55   119 42.05 10,366 53.85   19 30.65 1166 48.71  
 Women 251 59.48 11,506 46.45 0.001 164 57.95 8883 46.15 0.001 43 69.35 1228 51.29 0.005
Socio-economic position, n (%) f
 Quartile 1 119 28.20 5857 23.64   74 26.15 4524 23.50   23 37.10 632 26.40  
 Quartile 2 130 30.81 5847 23.60   90 31.80 4619 24.00   19 30.65 592 24.73  
 Quartile 3 96 22.75 5882 23.74   71 25.09 4769 24.78   14 22.58 548 22.89  
 Quartile 4 46 10.90 5930 23.94 0.001 39 13.78 4935 25.64 0.001 4 6.45 493 20.59 0.041
 Missing information 31 7.35 1256 5.07   9 3.18 402 2.09   
Education
 Primary education/elementary school 180 42.65 9549 38.55   116 40.99 7540 39.17   31 50.00 995 41.56  
 Short education /professional training 141 33.41 9689 39.11   101 35.69 7847 40.77   22 35.48 887 37.05  
 Middle long education or university 66 15.64 3695 14.92 0.12 54 19.08 3018 15.68 0.25 6 9.68 326 13.62 0.486
 Missing information 35 8.29 1839 7.42   12 4.24 844 4.38   3 4.84 186 7.77  
Charlson co-morbidity index score at date of the cancer operation, number (%)
 0 245 58.06 16,912 68.27   168 59.36 13,326 69.23   34 54.84 1646 68.76  
 1 82 19.43 3537 14.28   54 19.08 2740 14.23   12 19.35 321 13.41  
  > 1 95 22.51 4323 17.45 0.001 61 21.55 3183 16.54 0.002 16 25.81 427 17.84 0.067
  1. aAll CRC patients (cohort 1) with an operation in Denmark 2007–2013 according to The Danish Colorectal Cancer Group database, who were alive at least 30 days after operation, by pre-existing psychiatric history
  2. bElective (n = 19,532) and acute (n = 2456) operated CRC patients. Both populations split by a pre-existing psychiatric history. Missing information regarding acute or elective priority or urgency of the operation (n = 3206, 12.73% of total CRC)
  3. cPsychiatric disorder cases = having had a history of hospital admission for at least one psychiatric diagnosis as the primary diagnosis according to ICD-10-criteria: DF20–29: primary psychotic disorders, and DF30–39: affective disorders in the time period from 10 years to 120 days prior to the colorectal cancer operation
  4. dPearson Chi-square test or t-test, p-value
  5. eSD = standard deviation,
  6. fThe socio-economic position was defined by level of yearly income according to the definition used by Statistics Denmark, quartiles (for the main analyses below DKK 143,927, DKK from 143,927–178,573, DKK from 178,573-247,677.4, and above DKK 247,677.4)
  7. gAnonymised number (number = 1 or 2) according to the Danish data protection recommendation, (percentage)