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Table 1 Characteristics of the cohort

From: Incorporating competing risk theory into evaluations of changes in cancer survival: making the most of cause of death and routinely linked sociodemographic data

CharacteristicTime period of diagnosisp value*
1983–19871988–19921993–19971998–20022003–20072008–2011
n%n%n%n%n%n%
Major cancer types combined
 Follow up in yearsMedian (IQR)2.50 (13.78)3.58 (17.47)6.01 (14.47)6.94 (9.92)4.79 (5.38)1.36 (2.01)< 0.001
 Number of comorbidities at DxMean (SD)      1.87 (1.82)1.70 (1.85)1.51 (1.73)< 0.001
 SexFemale938347.211,73047.913,80444.116,15546.118,52843.816,95942.8< 0.001
 Age group at Dx0-10 yrs1130.61170.51280.41450.41290.31310.3 
 11-17 yrs770.4720.31230.41080.31180.3900.2 
 18-24 yrs2461.22391.02720.92770.83130.72620.7 
 25-44 yrs213210.7274611.230749.833419.534418.130067.6 
 45-64 yrs663533.4785932.110,15132.411,98334.215,29736.214,85637.5 
 65-84 yrs967648.711,92048.715,55349.716,59647.419,92647.118,23046.0 
 85+ yrs9985.015246.219846.325857.430817.330827.8< 0.001
Total 19,88210.324,47712.731,28516.235,03518.242,30522.039,65720.6 
Female breast cancer
 Follow up in yearsMedian (IQR)8.81 (21.05)14.01 (16.11)14.43 (10.55)10.72 (4.12)5.93 (2.81)1.77 (1.97)< 0.001
 Number of comorbidities at DxMean (SD)      1.14 (1.43)0.95 (1.37)0.85 (1.28)< 0.001
 Age group at Dx25-44 yrs46317.863418.471016.273714.177613.369412.6 
 45-64 yrs107141.2149743.5202546.2268951.3311053.4282151.0 
 65-84 yrs93936.1112932.8144132.9156729.9166228.6172031.1 
 85+ yrs1224.71795.21974.52374.52704.62875.2< 0.001
Total 25999.6344412.8437916.2523819.4582021.5552720.5 
Colorectal cancer
 Follow up in yearsMedian (IQR)2.56 (12.68)3.50 (13.83)4.16 (13.48)5.69 (9.45)4.62 (4.99)1.42 (1.98)< 0.001
 Number of comorbidities at DxMean (SD)      2.24 (1.97)2.16 (1.95)2.11 (1.85)0.49
 SexFemale147647.8171147.7191044.9220244.2241844.6219342.9< 0.001
 Age group at Dx25-44 yrs1304.21714.81824.32134.32073.82234.4 
 45-64 yrs106834.6117232.7137332.3152830.7175132.3168032.9 
 65-84 yrs169254.8196954.9232254.6271954.6291053.7267052.3 
 85+ yrs1936.32717.63698.751010.25349.852210.2< 0.001
Total 308811.7358613.6425416.1497818.8542320.5511019.3 
Lung cancer
 Follow up in yearsMedian (IQR)0.44 (1.09)0.53 (1.27)0.53 (1.29)0.59 (1.34)0.64 (1.65)0.55 (1.10)< 0.001
 Number of comorbidities at DxMean (SD)      2.16 (1.85)2.01 (1.87)1.87 (1.79)< 0.001
 SexFemales71125.091129.4105631.5132634.8163237.8156640.6< 0.001
 Age group at Dx25-44 yrs592.1702.3651.9792.1631.5651.7 
 45-64 yrs109638.6103633.495128.3102726.9114626.5107327.8 
 65-84 yrs159656.2185759.9213763.7243163.7275363.8229259.4 
 85+ yrs893.11364.41985.92727.13488.141810.8< 0.001
Total 284113.3310214.6335715.8381417.9431720.3385718.1 
Prostate Cancer
 Follow up in yearsMean (SD)5.55 (6.11)6.98 (6.50)9.89 (6.04)8.04 (4.07)5.44 (2.14)1.90 (1.16)< 0.001
 Number of comorbidities at DxMean (SD)      1.92 (1.72)1.35 (1.68)1.04 (1.42)< 0.001
 Age group at Dx25-44 yrs50.3< 50.260.1140.3360.5490.6 
 45-64 yrs24814.140215.5140826.0152632.6287537.4325841.1 
 65-84 yrs136477.3191173.8368067.9282260.2437856.9425853.8 
 85+ yrs1478.327210.53236.03226.94085.33524.4< 0.001
Total 17655.925898.6541718.0468415.6769725.6791926.3 
Pancreatic cancer
 Follow up in yearsMedian (IQR)0.18 (0.48)0.23 (0.49)0.31 (0.63)0.35 (0.73)0.38 (0.83)0.44 (0.91)< 0.001
 Number of comorbidities at DxMean (SD)      2.33 (1.94)2.41 (2.12)2.03 (1.89) 
 SexFemales21846.026149.333147.841351.150449.044846.70.42
 Age group at Dx25-44 yrs153.2152.8233.3283.5282.7272.8 
 45-64 yrs12426.213826.116724.121526.630629.726827.9 
 65-84 yrs31366.032160.742561.446157.156655.053055.3 
 85+ yrs224.65310.07611.010112.512912.513414.0< 0.001
Total 47410.652911.869215.480818.0102922.995921.4 
Grade IV glioma
 Follow up in yearsMedian (IQR)0.42 (0.89)0.48 (0.81)0.42 (0.79)0.52 (1.49)0.59 (1.08)0.64 (0.84)0.0170
 Number of comorbidities at DxMean (SD)      2.39 (1.81)2.66 (2.02)2.75 (1.95)0.14
 SexFemales7145.89944.810742.811938.312638.211843.70.34
 Age group at Dx25-44 yrs2012.9209.0208.0289.0164.8124.4 
 45-64 yrs7145.810949.310441.613142.114644.211843.7 
 65-84 yrs6139.48136.711044.013744.115446.713048.1 
 85+ yrs00.0< 51.4104.0113.5103.072.60.018
Total 15510.122114.425016.331120.233021.527017.6 
  1. Dx Diagnosis, SD Standard deviation, IQR Interquartile range, n number of cases, % percentage of total cancer type as specified
  2. *Two-sided p values calculated using Chi squared for categorical variables and Kruskal-Wallis test for continuous variables. This assessed changes between variables over the time period
  3. Cell counts with less than 5 cases are shown as < 5 to preserve anonymity
  4. Note the number of individuals aged under 25 years of age is not shown for the individual cancer types due to very low numbers