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).

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)


1All participants sent for chest x-ray by physicians to rule out/confirm clinically suspected CAP.

2Self reported.

3Chi-square test.

4Unadjusted odds ratios.

5Fisher exact test.

6One participant had a score of 9, all others in this category scored either 18 or 19.

Krueger et al. BMC Geriatrics 2010 10:44   doi:10.1186/1471-2318-10-44

Open Data