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Table 3 Suicide in Patients With Cancer by Site and Years Since Diagnosis

From: Incidence of suicide among adolescent and young adult cancer patients: a population-based study

Cancer sitea 0–5 years 5–10 years 10–15 years 15–30 years
All
 No of suicide 352 194 132 153
 Person-years 2,413,420.2 1,785,358.3 1,369,803.9 1,264,207.9
 SMR (95% CI)bc 1.199 (1.080–1.331) 0.903 (0.785–1.040) 0.804 (0.678–0.954) 1.012(0.864–1.185)
Lung and bronchus
 No of suicide 4 1 3 1
 Person-years 21,310.5 12,794.1 10,188 9643.1
 SMR (95% CI)bc 1.348 (0.506–3.593) 0.572 (0.081–4.062) 2.168 (0.699–6.772) 0.763 (0.107–5.413)
Stomach
 No of suicide 5 0 0 0
 Person-years 7945.9 / / /
 SMR (95% CI)bc 4.223 (1.758–10.146) / / /
Oral cavity and pharynx
 No of suicide 9 6 4 6
 Person-years 40,367.3 31,639.7 25,408.4 24,024.3
 SMR (95% CI)bc 1.496 (0.779–2.876) 1.279 (0.575–2.846) 1.06 (0.398–2.823) 1.683 (0.756–3.747)
Larynx
 No of suicide 4 1 0 4
 Person-years 7397.3 5524.3 / 4105.4
 SMR (95% CI)bc 3.257 (1.223–8.679) 1.103 (0.155–7.833) / 5.895 (2.213–15.708)
Hodgkin lymphoma
 No of suicide 19 15 14 15
 Person-years 154,529.1 121,706.9 95,506.2 90,800.8
 SMR (95% CI)bc 0.882 (0.562–1.383) 0.884 (0.533–1.467) 1.048 (0.620–1.769) 1.178 (0.710–1.954)
Kidney
 No of suicide 5 3 1 0
 Person-years 34,213.4 21,394.6 13,296.1 /
 SMR (95% CI)bc 0.916 (0.381–2.202) 0.881 (0.284–2.732) 0.476 (0.067–3.376) /
Thyroid
 No of suicide 10 15 5 11
 Person-years 304,940.9 231,914.4 177,708.3 163,000.3
 SMR (95% CI)bc 0.36 (0.194–0.669) 0.705 (0.425–1.170) 0.305 (0.127–0.732) 0.725 (0.401–1.309)
Nervous system
 No of suicide 18 11 7 6
 Person-years 78,879.9 48,173.6 32,588 28,791.4
 SMR (95% CI)bc 1.598 (1.007–2.537) 1.671 (0.926–3.018) 1.604 (0.765–3.365) 1.569 (0.705–3.493)
Non-hodgkin lymphoma
 No of suicide 30 10 9 4
 Person-years 107,191.8 74,337.6 52,627.9 44,459
 SMR (95% CI)bc 1.789 (1.251–2.559) 0.868 (0.467–1.613) 1.102 (0.573–2.118) 0.583 (0.219–1.552)
Leukemias
 No of suicide 12 3 1 3
 Person-years 66,781.5 37,020.2 23,586.8 18,850.3
 SMR (95% CI)bc 1.242 (0.705–2.187) 0.569 (0.183–1.763) 0.3 (0.042–2.130) 1.134 (0.366–3.516)
Colorectal
 No of suicide 24 6 6 4
 Person-years 83,362.7 52,617.1 38,488.4 34,003.3
 SMR (95% CI)bc 1.981 (1.328–2.956) 0.799 (0.359–1.778) 1.111 (0.499–2.473) 0.853 (0.320–2.273)
Bladder
 No of suicide 5 5 2 3
 Person-years 36,080.1 31,857.8 28,210.3 28,337.9
 SMR (95% CI)bc 0.754 (0.314–1.813) 0.854 (0.355–2.051) 0.386 (0.096–1.542) 0.574 (0.185–1.779)
Gonad
 No of suicide 4 2 2 1
 Person-years 41,069.2 32,830.5 28,353.8 28,643.1
 SMR (95% CI)bc 1.498 (0.562–3.992) 0.947 (0.237–3.786) 1.108 (0.277–4.430) 0.551 (0.078–3.909)
Breastd
 No of suicide 21 16 10 6
 Person-years 302,555.6 209,432.5 154,023.4 140,039
 SMR (95% CI)bc 1.023 (0.667–1.569) 1.124 (0.689–1.835) 0.956 (0.515–1.778) 0.632 (0.284–1.406)
Cervix and uterusd
 No of suicide 19 9 7 6
 Person-years 190,234.6 154,903.8 129,910.9 126,362.5
 SMR (95% CI)bc 1.556 (0.992–2.439) 0.91 (0.474–1.749) 0.848 (0.404–1.780) 0.75 (0.337–1.668)
Nasopharyngeal
 No of suicide 5 0 0 1
 Person-years 8107.6 / / 3563.3
 SMR (95% CI)bc 3.836 (1.597–9.217) / / 1.832 (0.258–13.009)
Osseous and chondrommatous
 No of suicide 8 2 3 3
 Person-years 30,477 21,211.8 16,519.3 15,391.4
 SMR (95% CI)bc 1.948 (0.974–3.895) 0.708 (0.177–2.831) 1.368 (0.441–4.240) 1.458 (0.470–4.521)
Soft tissue
 No of suicide 53 14 10 9
 Person-years 106,086.5 73,337.1 58,510.3 54,880.6
 SMR (95% CI)bc 3.229 (2.467–4.227) 1.316 (0.779–2.222) 1.202 (0.647–2.235) 1.17 (0.609–2.248)
Germ cell and trophoblastic
 No of suicide 40 34 19 27
 Person-years 236,632.7 189,951.7 152,340.3 145,582.2
 SMR (95% CI)bc 0.821 (0.602–1.119) 0.872 (0.623–1.220) 0.61 (0.389–0.957) 0.909 (0.623–1.325)
Melanoma and skin carcinomas
 No of suicide 26 17 23 25
 Person-years 284,288 231,236.7 184,811.7 174,225.1
 SMR (95% CI)bc 0.726 (0.494–1.066) 0.587 (0.365–0.944) 0.991 (0.658–1.491) 1.139 (0.770–1.686)
  1. SMR standardized mortality ratio
  2. aAnalysis was limited to tumor sites for which at least 10,000 person years were accrued
  3. bAdjusted to the age and sex distributions of patients with single primary tumor
  4. cReference population: general US population, 1969 to 2015
  5. dSex-specific analysis, adjusted to the age distribution of patients with single primary tumor