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Table 1 Descriptive statistics of whether elderly persons had absence of influenza vaccination at 2005-2006 flu season in Taiwan

From: Absence of influenza vaccination among high-risk older adults in Taiwan

Variables Received Vaccination (n= 14091) Had an Absence of Vaccination
(n= 6832)
P-
value
Individual factors (n, %)    
   Age    
65-69 5018(68.0%) 2362(32.0%) < 0.01
70-74 3523(68.5%) 1624(31.5%)  
75-79 2785(66.7%) 1390(33.3%)  
≥ 80 2765(65.5%) 1456(34.5%)  
   Gender    
Women 7475(67.9%) 3537(32.1%) 0.08
Men 6616(66.8%) 3295(33.2%)  
   Charlson Comorbidity Index    
0 3929(84.6%) 713(15.4%) < 0.01
1 2357(71.9%) 922(28.1%)  
2 2133(62.3%) 1289(37.7%)  
≥ 3 5672(59.2%) 3908(40.8%)  
Health care utilizations (n, %)    
   Received flu shot at 2004-2005 flu season    
No 6690(56.7%) 5117(43.3%) < 0.01
Yes 7401(81.2%) 1715(18.8%)  
Hospital factors (n, %)    
   Hospital level    
Medical centers 1536(57.5%) 1137(42.5%) < 0.01
Regional hospitals 1812(59.9%) 1214(40.1%)  
District hospitals 1738(65.8%) 902(34.2%)  
Clinics 9005(71.6%) 3579(28.4%)  
   Teaching status    
Teaching 3486(59.7%) 2352(40.3%) < 0.01
Non-teaching 10605(70.3%) 4480(29.7%)  
   Ownership    
Public 2324(63.3%) 1350(36.7%) < 0.01
Non-for-profit 1616(58.4%) 1151(41.6%)  
For profit 10151(70.1%) 4331(29.9%)  
   Specialty divisions    
Internal medicine 3091(59.6%) 2094(40.4%) < 0.01
Family medicine 1499(69.7%) 614(30.3%)  
Other specialties 9501(70.9%) 4124(29.1%)  
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