Table 5 Unadjusted difference in ACP incidence among Medicaid enrollees, by social vulnerability (2017–2019)

From: Influence of area-level social vulnerability on all-cause pneumonia incidence among adult Medicare and Medicaid enrollees

Group

ACP incidence (per 100,000 PY): MHSVI Q1 counties

ACP incidence (per 100,000 PY): MHSVI Q5 counties

Unadjusted IRR (Q5 / Q1)

95% Confidence Interval around IRR

IRR p-value

Overall

2095

1650

0.79***

(0.78, 0.80)

<0.0001

Age

 19–49

1653

1204

0.73***

(0.72, 0.74)

<0.0001

 50–64

3807

3377

0.89***

(0.87, 0.90)

<0.0001

Race and ethnicity

 White, non-Hispanic

2192

2145

0.98***

(0.97, 0.99)

0.0004

 Black, non-Hispanic

1742

1902

1.09**

(1.03, 1.15)

0.0015

 Hispanic

1704

1132

0.66***

(0.64, 0.69)

<0.0001

 Asian

1097

934

0.85**

(0.77, 0.95)

0.0029

 Other

2333

2039

0.87***

(0.82, 0.93)

<0.0001

Risk of pneumococcal disease

 Low risk

1049

755

0.72***

(0.71, 0.73)

<0.0001

 Moderate risk

4840

4558

0.94***

(0.93, 0.95)

<0.0001

 High risk

4277

5510

1.29***

(1.25, 1.33)

<0.0001

  1. The table shows disease incidence per 100,000 person-years. Ns presented in Table 4.
  2. *p-value < 0.05; **p-value < 0.01; ***p-value < 0.001.
  3. ACP All-cause pneumonia, IRR incidence rate ratio, MHSVI Minority Health Social Vulnerability Index, PY person-years, Q1 least vulnerable quintile; Q5 most vulnerable quintile.
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