Number of Cases with MDS data

The below table is intended to give investigators an estimated sample size of cancer cases who have an MDS assessment, stratified by major cancer sites and timing since cancer diagnosis.

Patients with a new nursing home admission MDS assessment* (2011-2017) relative to date of cancer diagnosis (2004-2017) among SEER-Medicare patients, by cancer site.
  Timing of new MDS assessments relative to cancer diagnosis
Cancer Site1 Number of patients with at least one new MDS assessment (%)2 1+ months before (%)3 Month of or 1 month after (%)3 2-12 months after (%)3 >12 months after (%)3
Bladder 32957 (29.1%) 6569 (19.9%) 4778 (14.5%) 7733 (23.5%) 20846 (63.3%)
Breast 79448 (24.2%) 14514 (18.3%) 4650 (5.9%) 11005 (13.9%) 60107 (75.7%)
Colorectal 67850 (33.3%) 13356 (19.7%) 19839 (29.2%) 17835 (26.3%) 237604 (55.4%)
Kidney 17154 (27.5%) 3555 (20.7%) 3820 (22.3%) 4101 (23.9%) 9833 (57.3%)
Leukemias 15449 (27.7%) 4081 (26.4%) 3088 (20.0%) 3412 (22.1%) 7560 (48.9%)
Lung 80359 (30.5%) 23565 (29.3%) 24618 (30.6%) 27269 (33.9%) 25658 (31.9%)
Non-hodgkin lymphoma 25416 (29.1%) 4973 (19.6%) 5548 (21.8%) 6591 (25.9%) 13968 (55.0%)
Ovary 7467 (30.3%) 1736 (23.2%) 2608 (34.9%) 2146 (28.7%) 2992 (40.1%)
Pancreas 16585 (27.1%) 6357 (38.3%) 6247 (37.7%) 5809 (35.0%) 2511 (15.1%)
Prostate 74150 (17.9%) 8916 (12.0%) 4630 (6.2%) 7812 (10.5%) 58872 (79.4%)
Thyroid 4545 (18.2%) 900 (19.8%) 416 (9.2%) 699 (15.4%) 3194 (70.3%)
Uterus/Endometrium 16363 (25.4%) 3323 (20.3%) 2336 (14.3%) 3966 (24.2%) 10298 (62.9%)
Other Cancers 150164 (29.0%) 40229 (26.8%) 34094 (22.7%) 42014 (28.0%) 68398 (45.5%)
Multiple cancers 172547 (30.6%)        
First cancer   21727 (12.6%) 20844 (12.1%) 30855 (17.9%) 126346 (73.2%)
Last cancer   44738 (25.9%) 36224 (21.0%) 47541 (27.6%) 87477 (50.7%)
TOTAL 760454 (27.3%) 198539 (26.1%) 173740 (22.8%) 218788 (28.8%) 535664 (70.4%)

Note. SEER= Surveillance, Epidemiology and End Results; MDS= Minimum Data Set

*To be included each cancer case had to have at least one MDS assessment between 2011-2016 where A0310A_FED_OBRA_CD=01 or A0310B_PPS_CD=01, 02, 03, 04, 05 or A0310F_ENTRY_DSCHRG_CD=1.

1Site-specific cancer categories include patients who have only one cancer diagnosis (sequence number=00); the multiple cancer category includes patients who have more than one cancer diagnosis (sequence number =01+)

2Percentage of patients who had a new nursing home admission MDS assessment (2011-2017), among patients with known cancer diagnosis date who were aged 65+ years at cancer diagnosis (2004-2017) and were alive as of Jan 1, 2011.

3Percentage of patients who had at least one new nursing home admission MDS assessment (2011-2017) during the time window with respect to cancer diagnosis, among patients who had at least one new MDS assessment (2011-2017), had known cancer diagnosis date, were aged 65+ years at cancer diagnosis (2004-2017) and were alive as of Jan 1, 2011. Percentages are not mutually exclusive, given a patient could have multiple new nursing home admission MDS assessments, thus a person can be included in multiple time window categories.

Last Updated: 18 Feb, 2021