Skip to main content

Table 1 Number (percent) of all seasonal pneumonia and influenza hospitalizations by time of year, state of residence, and provider state, 1991-2006

From: Snowbirds and infection--new phenomena in pneumonia and influenza hospitalizations from winter migration of older adults: A spatiotemporal analysis

State October-March April-September High P-value*
  Residents Nonresidents Residents Nonresidents season  
Alabama 248632 (96.3) 9472 (3.7) 172927 (96.4) 6429 (3.6) Oct-Mar 0.138
Alaska 9188 (96.2) 363 (3.8) 7914 (88.5) 1033 (11.6) Apr-Sep < 0.001
Arizona 142096 (84.7) 25635 (15.3) 94299 (91.9) 8371 (8.2) Oct-Mar < 0.001
Arkansas 165858 (92.9) 12749 (7.1) 113955 (92.8) 8621 (7.2) Oct-Mar 0.626
California 845466 (97.0) 25685 (3.0) 604817 (97.4) 15907 (2.6) Oct-Mar < 0.001
Colorado 108513 (94.4) 6419 (5.6) 76255 (93.2) 5568 (6.8) Apr-Sep < 0.001
Connecticut 156200 (95.1) 8069 (4.9) 116421 (94.6) 6616 (5.4) Apr-Sep < 0.001
Delaware 28834 (92.3) 2403 (7.7) 21747 (91.8) 1955 (8.2) Apr-Sep 0.017
D.C. 18095 (69.0) 8133 (31.0) 14086 (68.6) 6441 (31.4) Apr-Sep 0.392
Florida 617641 (89.4) 73042 (10.6) 465872 (94.1) 28981 (5.9) Oct-Mar < 0.001
Georgia 332552 (94.6) 18841 (5.4) 229626 (94.6) 13076 (5.4) Oct-Mar 0.664
Hawaii 26353 (93.3) 1893 (6.7) 21669 (95.6) 1007 (4.4) Oct-Mar < 0.001
Idaho 43865 (93.9) 2848 (6.1) 30702 (92.4) 2542 (7.6) Apr-Sep < 0.001
Illinois 589003 (97.3) 16151 (2.7) 438403 (97.0) 13505 (3.0) Apr-Sep < 0.001
Indiana 300301 (93.7) 20074 (6.3) 222693 (93.2) 16143 (6.8) Apr-Sep < 0.001
Iowa 179608 (93.8) 11839 (6.2) 126674 (93.5) 8885 (6.5) Apr-Sep < 0.001
Kansas 165757 (94.7) 9206 (5.3) 110418 (94.4) 6537 (5.6) Apr-Sep < 0.001
Kentucky 281541 (94.7) 15631 (5.3) 203019 (94.5) 11801 (5.5) Apr-Sep < 0.001
Louisiana 251425 (96.4) 9437 (3.6) 174827 (96.4) 6519 (3.6) Oct-Mar 0.689
Maine 59499 (97.3) 1661 (2.7) 43596 (94.9) 2446 (5.3) Apr-Sep < 0.001
Maryland 190971 (92.1) 16361 (7.9) 141807 (91.8) 12646 (8.2) Apr-Sep 0.001
Massachusetts 311878 (95.2) 15664 (4.8) 229926 (94.3) 13856 (5.7) Apr-Sep < 0.001
Michigan 405840 (98.1) 7921 (1.9) 314254 (97.3) 8691 (2.7) Apr-Sep < 0.001
Minnesota 192294 (94.3) 11529 (5.7) 141106 (92.9) 10727 (7.1) Apr-Sep < 0.001
Mississippi 169578 (95.3) 8414 (4.7) 114003 (95.1) 5874 (4.9) Apr-Sep 0.030
Missouri 333352 (93.1) 24737 (6.9) 235351 (92.6) 18720 (7.4) Apr-Sep < 0.001
Montana 44327 (96.5) 1618 (3.5) 30941 (94.6) 1754 (5.4) Apr-Sep < 0.001
Nebraska 93004 (94.3) 5647 (5.7) 65457 (93.5) 4582 (6.5) Apr-Sep < 0.001
Nevada 52948 (86.4) 8308 (13.6) 38742 (87.0) 5801 (13.0) Oct-Mar 0.011
New Hampshire 40253 (88.1) 5431 (11.9) 28592 (86.4) 4506 (13.6) Apr-Sep < 0.001
New Jersey 331599 (96.0) 13835 (4.0) 251794 (95.5) 11942 (4.5) Apr-Sep < 0.001
New Mexico 62858 (93.5) 4348 (6.5) 40350 (93.3) 2897 (6.7) Apr-Sep 0.133
New York 702238 (97.4) 18964 (2.6) 542368 (96.8) 18176 (3.2) Apr-Sep < 0.001
North Carolina 361924 (95.9) 15539 (4.1) 256028 (95.4) 12213 (4.6) Apr-Sep < 0.001
North Dakota 41906 (86.3) 6661 (13.7) 31203 (85.5) 5261 (14.5) Apr-Sep 0.002
Ohio 578674 (96.5) 21010 (3.5) 430959 (96.0) 17813 (4.0) Apr-Sep < 0.001
Oklahoma 219441 (96.7) 7469 (3.3) 150865 (96.6) 5341 (3.4) Apr-Sep 0.031
Oregon 89788 (93.5) 6237 (6.5) 65729 (92.9) 5053 (7.1) Apr-Sep < 0.001
Pennsylvania 548327 (95.9) 23642 (4.1) 405591 (95.4) 19536 (4.6) Apr-Sep < 0.001
Rhode Island 42368 (92.5) 3438 (7.5) 30789 (91.6) 2832 (8.4) Apr-Sep < 0.001
South Carolina 162490 (96.0) 6712 (4.0) 113858 (96.2) 4517 (3.8) Oct-Mar 0.040
South Dakota 57904 (91.4) 5435 (8.6) 40526 (90.5) 4278 (9.5) Apr-Sep < 0.001
Tennessee 345673 (92.3) 28957 (7.7) 250242 (91.9) 21961 (8.1) Apr-Sep < 0.001
Texas 770764 (95.9) 32772 (4.1) 523340 (96.4) 19517 (3.6) Oct-Mar < 0.001
Utah 55929 (93.9) 3667 (6.1) 39408 (92.9) 3024 (7.1) Apr-Sep < 0.001
Vermont 23032 (88.4) 3016 (11.6) 17270 (86.3) 2735 (13.7) Apr-Sep < 0.001
Virginia 252964 (94.1) 15905 (5.9) 183771 (93.8) 12102 (6.2) Apr-Sep < 0.001
Washington 162143 (95.4) 7884 (4.6) 121115 (94.8) 6606 (5.2) Apr-Sep < 0.001
West Virginia 138485 (89.7) 15479 (10.3) 100701 (89.3) 10287 (10.7) Apr-Sep < 0.001
Wisconsin 211858 (96.0) 8750 (4.0) 156389 (95.3) 7800 (4.7) Apr-Sep < 0.001
Wyoming 20341 (94.8) 1123 (5.2) 14451 (91.8) 1294 (8.22) Apr-Sep < 0.001
  1. χ 2 test