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. Author manuscript; available in PMC: 2011 Jun 17.
Published in final edited form as: Vaccine. 2010 May 8;28(28):4462–4469. doi: 10.1016/j.vaccine.2010.04.035

Table 3.

Parameter estimates (and standard errors) from models of pneumonia and influenza overall, and by urbanicity and median state income level

Model 1A Model 1B Model 2
Elderly Influenza
Vaccination Coverage
Elderly Pneumonia
Vaccination Coverage
Child 4:3:1:3
Vaccination Coverage
All 0.0018 (0.0063) −0.0028 (0.0027) −0.0130 (0.0039)***
Urbanicity MH
  Low 0.0063 (0.0122) −0.0026 (0.0045) −0.0144 (0.0074)
  Medium −0.0002 (0.0099) −0.0018 (0.0049) −0.0071 (0.0064)
  High −0.0016 (0.0110) −0.0032 (0.0052) −0.0149 (0.0060)*
Income
  Low −0.0105 (0.0092) −0.0060 (0.0035) −0.0131 (0.0069)
  Medium 0.0139 (0.0135) 0.0007 (0.0062) −0.0113 (0.0069)
  High 0.0046 (0.0103) −0.0010 (0.0050) −0.0127 (0.0064)
Model 3A Model 3B
Elderly Influenza
Vaccination Coverage
Child 4:3:1:3
Vaccination Coverage
Elderly Pneumonia
Vaccination Coverage
Child 4:3:1:3
Vaccination Coverage
All 0.0089 (0.0066) −0.0147 (0.0041)*** −0.0005 (0.0029) −0.0127 (0.0040)**
Urbanicity LM, MH LM, MH
  Low 0.0112 (0.0128) −0.0158 (0.0076)* −0.0002 (0.0050) −0.0147 (0.0076)
  Medium 0.0018 (0.0100) −0.0072 (0.0065) −0.0011 (0.0050) −0.0067 (0.0065)
  High 0.0121 (0.0117) −0.0180 (0.0067)** 0.0003 (0.0052) −0.0149 (0.0063)*
Income LM LM, MH LM
  Low −0.0062 (0.0098) −0.0119 (0.0071) −0.0048 (0.0038) −0.0108 (0.0071)
  Medium 0.0200 (0.0134) −0.0140 (0.0071) 0.0026 (0.0061) −0.0117 (0.0071)
  High 0.0144 (0.0110) −0.0161 (0.0069)* 0.0017 (0.0052) −0.0132 (0.0066)*
a

Adjusted for log of population density and median state income

*

p < 0.05,

**

p < 0.01,

***

p < 0.001

LM = interaction term comparing Low and Medium states significant (p < 0.05)

LH = interaction term comparing Low and High states significant (p < 0.05)

MH = interaction term comparing Medium and High states significant (p < 0.05)

Explanatory variables:

Model 1A: Elderly influenza vaccination coverage only

Model 1B: Elderly pneumonia vaccination coverage only

Model 2: 4:3:1:3 vaccination coverage in children

Model 3A: Elderly influenza vaccination coverage and 4:3:1:3 vaccination coverage in children

Model 3B: Elderly pneumonia vaccination coverage and 4:3:1:3 vaccination coverage in children