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. 2020 Dec 18;224(4):684–694. doi: 10.1093/infdis/jiaa773

Table 2.

Patients With Multiple Prior Healthcare Exposures, Excluding “Other Outpatient Care”: 2001–2017 Nationwide Hospitalizations in IBM MarketScan Research Databasea

Setting 30 Days 60 Days 90 Days 120 Days 150 Days 180 Days
Hospital-onset CDI
 No exposure 37 006 (52.3) 30 893 (43.66) 26 773 (37.84) 23 998 (33.91) 21 920 (30.98) 20 226 (28.58)
 ≥1 setting 33 754 (47.7) 39 867 (56.34) 43 987 (62.16) 46 762 (66.09) 48 840 (69.02) 50 534 (71.42)
 ≥2 settings 8430 (11.91) 13 238 (18.71) 16 802 (23.75) 19 637 (27.75) 22 064 (31.18) 24 045 (33.98)
 ≥3 settings 848 (1.2) 2004 (2.83) 3068 (4.34) 4176 (5.9) 5175 (7.31) 6144 (8.68)
No CDI (and LOS ≥3 d)
 No exposure 5 386 358 (78.17) 4 967 053 (72.08) 4 631 107 (67.21) 4 363 673 (63.33) 4 139 714 (60.08) 3 945 419 (57.26)
 ≥1 setting 1 504 422 (21.83) 1 923 727 (27.92) 2 259 673 (32.79) 2 527 107 (36.67) 2 751 066 (39.92) 2 945 361 (42.74)
 ≥2 settings 170 571 (2.48) 303 443 (4.4) 431 516 (6.26) 553 980 (8.04) 668 766 (9.71) 775 793 (11.26)
 ≥3 settings 8816 (0.13) 23 606 (0.34) 41 189 (0.6) 61 818 (0.9) 84 259 (1.22) 108 363 (1.57)

Data are presented as No. (%) unless otherwise indicated.

Abbreviations: CDI, Clostridioides difficile infection; LOS, length of stay.

aFor each patient, we counted the number of different types of different healthcare settings (ie, hospitalization, emergency department [ED], ambulatory surgery, or nursing home/long-term care facility) they encountered in a given window prior to admission. For example, a patient who had a hospitalization, ED visit, and ambulatory surgery visit within 30 days of admission would receive a count of 2, whereas a patient who only encountered an ED in the prior 30 days would receive a count of 1.