Number of SEER-MHOS (1998-2023) Respondents (Age 65+) by First Cancer Site

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First Cancer (#) Number of linked Patients with One or More survey
(Group A)
More than one survey*
(Subset of Group A)
Survey before Cancer Diagnosis
(Group B)
Survey both before and after Cancer Diagnosis**
(Subset of Group B)
Survey after Cancer Diagnosis
(Group C)
N % N % N % N %
Prostate (28010) 75,148 36,156 (48.11) 25,888 (34.45) 5,740 (7.64) 54,989 (73.17)
Breast (26000) 69,352 34,577 (49.86) 25,640 (36.97) 5,304 (7.65) 49,002 (70.66)
Colorectal (21041-21052) 39,948 18,863 (47.22) 19,364 (48.47) 2,906 (7.27) 23,487 (58.79)
Lung and bronchus (22030) 39,297 16,815 (42.79) 31,491 (80.14) 2,358 (6.00) 10,155 (25.84)
Ovary (27040) 3,904 1,805 (46.23) 2,393 (61.3) 234 (5.99) 1,745 (44.7)
Uterus (27020, 27030) 12,483 6,041 (48.39) 4,544 (36.4) 800 (6.41) 8,737 (69.99)
Cervix (27010) 1,699 741 (43.61) 551 (32.43) 61 (3.59) 1,209 (71.16)
Bladder (29010) 20,179 9,865 (48.89) 10,963 (54.33) 1,732 (8.58) 10,948 (54.25)
Melanomas - skin (25010) 21,551 11,345 (52.64) 10,041 (46.59) 1,876 (8.70) 13,333 (61.87)
Head and Neck (20010-20100,22010,22020) 9,885 4,471 (45.23) 4,848 (49.04) 699 (7.07) 5,736 (58.03)
Kidney and Renal pelvis (29020) 10,543 4,933 (46.79) 5,566 (52.79) 873 (8.28) 5,849 (55.48)
Non-Hodgkin’s lymphomas - nodal & extranodal (33041,33042) 13,994 6,741 (48.17) 8,229 (58.8) 1,065 (7.61) 6,828 (48.79)
Stomach (21020) 5,064 2,162 (42.69) 3,657 (72.22) 286 (5.65) 1,692 (33.41)
Pancreas (21100) 8,079 3,471 (42.96) 7,407 (91.68) 267 (3.3) 939 (11.62)

# 5-Digit site recode.External Web Site Policy

* At least one survey must be two years after first survey.

** Number of individuals with a survey before their first cancer diagnosis and also a survey after their first cancer diagnosis.

Note:

  1. The denominator for the percentages that appear in columns 3 through 6 is the Number of linked patients with one or more survey by cancer site (column 2).
  2. The groups in columns 4 through 6 are not mutually exclusive, therefore, the percentages do not sum to 100.
Last Updated: 14 Jan, 2026