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Table 1 Potential predictors of pneumococcal vaccination among older adults (aged 60 years of age and older) with clinically diagnosed1 community acquired pneumonia (n = 185).

From: Predictors of pneumococcal vaccination among older adults with pneumonia: findings from the Community Acquired Pneumonia Impact Study

  Pneumococcal Vaccination Status2    
Potential Predictor Variables Ever Vaccinated
(n = 102)
Never Vaccinated
(n = 83)
P-value3 Odds Ratio4 95% CI
Demographic Variables      
Participant's age (n = 183):      
   60 to 69 27 (42.9) 36 (57.1)   1.00 -
   70 to 90 75 (62.5) 45 (37.5) 0.011 2.22 (1.19, 4.14)
Co-morbidities      
Reported health condition (asthma) (n = 185):      
   No 84 (51.9) 78 (48.1)   1.00 -
   Yes 18 (78.3) 5 (21.7) 0.017 3.34 (1.18, 9.44)
Reported health condition (chronic bronchitis) (n = 185):      
   No 77 (52.0) 71 (48.0)   1.00 -
   Yes 25 (67.6) 12 (32.4) 0.089 1.92 (0.90, 4.11)
Reported health condition (diabetes) (n = 185):      
   No 85 (52.8) 76 (47.2)   1.00 -
   Yes 17 (70.8) 7 (29.2) 0.097 2.17 (0.85, 5.52)
Reported health condition (emphysema) (n = 185):      
   No 90 (52.3) 82 (47.7)   1.00 -
   Yes 12 (92.3) 1 (7.7) 0.0075 10.93 (1.39, 85.9)
Reported health condition (congestive heart failure) (n = 185):      
   No 93 (53.8) 80 (46.2)   1.00 -
   Yes 9 (75.0) 3 (25.0) 0.152 2.58 (0.68, 9.86)
None of the above health conditions (n = 185):      
   Had none 21 (41.2) 30 (58.8)   1.00 -
   Had at least one 81 (60.4) 53 (39.6) 0.019 2.18 (1.13, 4.21)
Lifestyle      
Most recent influenza vaccine (n = 185):      
   One year or ore/never 4 (15.4) 22 (84.6)   1.00 -
   Less than one year ago 98 (61.6) 61 (38.4) <0.001 8.84 (2.91, 26.9)
Before illness, how often did the
participant skip meals (n = 185):
     
   Sometimes/often/daily 13 (36.1) 23 (63.9)   1.00 -
   Never/rarely 89 (59.7) 60 (40.3) 0.011 2.62 (1.23, 5.58)
How much does spiritual values or religious
faith play a role in life (n = 184):
     
   None 7 (36.8) 12 (63.2)   1.00 -
   Great deal to little 95 (57.6) 70 (42.4) 0.085 2.33 (0.87, 6.21)
Quality of life (SF-8) ratings before illness      
Overall rating of health (n = 185):      
   Excel/very good/good 84 (53.2) 74 (46.8)   1.00 -
   Fair/poor/very poor 18 (66.7) 9 (33.3) 0.192 1.76 (0.75, 4.16)
Before illness, how much did the participant's
health problems limit your usual activities (n = 185):
     
   Somewhat to not at all 82 (51.3) 78 (48.8)   1.00 -
   Quite a lot/couldn't do 20 (80.0) 2 (20.0) 0.007 3.81 (1.36, 10.6)
How much does the participant have difficulty doing
usual daily activities because of physical health (n = 185):
     
   Somewhat to not at all 88 (53.0) 78 (47.0)   1.00 -
   Quite a lot/couldn't do 14 (73.7) 5 (26.3) 0.086 2.48 (0.86, 7.20)
How much bodily pain does the participant have (n = 184):      
   Mod/severe/very severe 54 (65.1) 25 (24.8)   1.00 -
   None/very mild/mild 76 (75.2) 29 (34.9) 0.131 1.63 (0.86, 3.10)
How much energy does the participant have (n = 185):      
   Very much/a lot/some 91 (52.6) 82 (47.4)   1.00 -
   A little/none 11 (91.7) 1 (8.3) 0.0135 9.91 (1.25, 78.5)
Functional Status (before illness)      
Barthel 10-item ADL score (n = 184):      
   20 78 (52.0) 72 (48.0)   1.00 -
   9 to 196 23 (67.6) 11 (32.4) 0.098 1.93 (0.88, 4.24)
Social support      
Does the participant have sister(s) and/or brother(s) (n = 184):      
   Yes 72 (52.2) 66 (47.8)   1.00 -
   No 30 (65.2) 16 (34.8) 0.123 1.72 (0.86, 3.44)
Distance to the participant's nearest sibling (n = 122):      
   Within Brant 22 (40.7) 32 (59.3)   1.00 -
   Outside Brant 39 (57.4) 29 (42.6) 0.068 1.96 (0.95, 4.04)
How often in the last 6 months has the participant
seen or spoken with above relatives on the phone (n = 184):
     
   Less than once/week 4 (30.8) 9 (69.2)   1.00 -
   At least once/week 98 (57.3) 73 (42.7) 0.063 3.02 (0.90, 10.2)
How often in the last 6 months participant had a
chat or did something with a friend (n = 184):
     
   Less than once/week 16 (37.2) 27 (62.8)   1.00 -
   At least once/week 86 (61.0) 55 (39.0) 0.006 2.64 (1.30, 5.34)
  1. 1All participants sent for chest x-ray by physicians to rule out/confirm clinically suspected CAP.
  2. 2Self reported.
  3. 3Chi-square test.
  4. 4Unadjusted odds ratios.
  5. 5Fisher exact test.
  6. 6One participant had a score of 9, all others in this category scored either 18 or 19.