Average Incidence Rates per 100 000 Person-Years and Relative Rates of 13-Valent Pneumococcal Conjugate Vaccine Serotype Invasive Pneumococcal Disease by Neighborhood-Level Socioeconomic Factors—Data From 20 Counties in Tennessee, 1998–2016
| Characteristic . | Pre-PCV7 (1998–1999) (n = 601) . | . | . | . | Pre-PCV13 (2001–2009) (n = 2032) . | . | . | . | Post-PCV13 (2011–2016) (n = 561) . | . | . | . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . |
| Below poverty level, % | ||||||||||||
| <5 | 6.4 (4.9–7.9) | … | … | 3.9 (2.9–5.3) | 4.6 (4.1–5.1) | … | … | 2.5 (2.1–2.9) | 1.4 (1–1.8) | … | … | 2.3 (1.7–3.1) |
| 5–9.9 | 9 (7.3–10.7) | 1.4 (1.1–1.8) | 2.6 (.3–4.9) | … | 6.6 (6–7.2) | 1.4 (1.3–1.6) | 2 (1.2–2.8) | … | 2.1 (1.7–2.5) | 1.5 (1.2–1.9) | 0.7 (.2–1.2) | … |
| 10–19.9 | 13.7 (11.6–15.8) | 2.1 (1.8–2.6) | 7.3 (4.7–9.9) | … | 7.7 (7–8.4) | 1.7 (1.5–1.9) | 3.1 (2.3–3.9) | … | 2.4 (2.1–2.7) | 1.7 (1.4–2.1) | 1 (.5–1.5) | … |
| ≥20.0 | 17.8 (15.7–19.9) | 2.8 (2.4–3.2) | 11.4 (8.8–14) | … | 9.7 (9–10.4) | 2.1 (1.9–2.3) | 5.1 (4.2–6) | … | 3.1 (2.7–3.5) | 2.2 (1.8–2.7) | 1.7 (1.1–2.3) | … |
| Female-headed household, % | ||||||||||||
| <19.9 | 8.2 (6.9–9.5) | … | … | 3.2 (2.4–4.3) | 5.7 (5.3–6.1) | … | … | 2.3 (1.9–2.7) | 2 (1.7–2.3) | … | … | 1.7 (1.3–2.4) |
| 20–39.9 | 11.7 (9.9–13.5) | 1.4 (1.2–1.7) | 3.5 (1.3–5.7) | … | 7.3 (6.7–7.9) | 1.3 (1.2–1.4) | 1.6 (.9–2.3) | … | 2.4 (2.1–2.7) | 1.2 (1–1.4) | 0.4 (0–.8) | … |
| ≥40.0 | 17.2 (15.1–19.3) | 2.1 (1.8–2.4) | 9 (6.6–11.4) | … | 9.7 (9–10.4) | 1.7 (1.6–1.9) | 4 (3.2–4.8) | … | 2.9 (2.5–3.3) | 1.4 (1.2–1.7) | 0.9 (.4–1.4) | … |
| Employed, % | ||||||||||||
| <49.9 | 14.6 (13.1–16.1) | … | … | 2.4 (1.7–3.3) | 8.2 (7.7–8.7) | … | … | 1.7 (1.4–2) | 2.6 (2.3–2.9) | … | … | 1.7 (1.2–2.4) |
| ≥50.0 | 9.5 (8.2–10.8) | 0.7 (.5–.8) | –5.1 (–7 to –3.2) | … | 6.3 (5.9–6.7) | 0.8 (.7–.8) | –1.9 (–2.5 to –1.3) | … | 2 (1.7–2.3) | 0.8 (.6–.9) | –0.6 (–1 to –.2) | … |
| Single parent–headed household, % | ||||||||||||
| <19.9 | 6.9 (5.5–8.3) | … | … | 3.9 (2.8–5.3) | 5.1 (4.6–5.6) | … | … | 2.5 (2.1–3) | 1.6 (1.3–1.9) | … | … | 2.2 (1.6–3) |
| 20–39.9 | 10.5 (8.9–12.1) | 1.5 (1.2–1.9) | 3.6 (1.5–5.7) | … | 6.8 (6.3–7.3) | 1.3 (1.2–1.5) | 1.7 (1–2.4) | … | 2.5 (2.2–2.8) | 1.6 (1.3–1.9) | 0.9 (.5–1.3) | … |
| ≥40.0 | 16.8 (15–18.6) | 2.4 (2.1–2.8) | 9.9 (7.6–12.2) | … | 9.5 (8.9–10.1) | 1.9 (1.7–2) | 4.4 (3.6–5.2) | … | 2.9 (2.5–3.3) | 1.8 (1.5–2.1) | 1.3 (.8–1.8) | … |
| Black or African American alonea, % | ||||||||||||
| <19.9 | 9.5 (8.3–10.7) | … | … | 2.9 (2.1–3.9) | 6.1 (5.7–6.5) | … | … | 2.4 (2–2.8) | 2.4 (2.2–2.6) | … | … | 0.9 (.7–1.3) |
| 20–39.9 | 11.3 (9–13.6) | 1.2 (.9–1.5) | 1.8 (–.8 to 4.4) | … | 7.3 (6.5–8.1) | 1.2 (1.1–1.4) | 1.2 (.3–2.1) | … | 2.1 (1.6–2.6) | 0.9 (.7–1.2) | –0.3 (–.9 to .3) | … |
| 40–59.9 | 15.4 (11.3–19.5) | 1.6 (1.2–2.1) | 5.9 (1.6–10.2) | … | 8.8 (7.4–10.2) | 1.4 (1.2–1.7) | 2.7 (1.2–4.2) | … | 2.3 (1.6–3) | 1 (.7–1.3) | –0.1 (–.9 to .7) | … |
| ≥60.0 | 18.6 (16–21.2) | 2 (1.7–2.3) | 9.1 (6.3–11.9) | … | 10.7 (9.8–11.6) | 1.8 (1.6–1.9) | 4.6 (3.6–5.6) | … | 2.4 (1.9–2.9) | 1 (.8–1.3) | 0 (–.6 to .6) | … |
| Characteristic . | Pre-PCV7 (1998–1999) (n = 601) . | . | . | . | Pre-PCV13 (2001–2009) (n = 2032) . | . | . | . | Post-PCV13 (2011–2016) (n = 561) . | . | . | . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . |
| Below poverty level, % | ||||||||||||
| <5 | 6.4 (4.9–7.9) | … | … | 3.9 (2.9–5.3) | 4.6 (4.1–5.1) | … | … | 2.5 (2.1–2.9) | 1.4 (1–1.8) | … | … | 2.3 (1.7–3.1) |
| 5–9.9 | 9 (7.3–10.7) | 1.4 (1.1–1.8) | 2.6 (.3–4.9) | … | 6.6 (6–7.2) | 1.4 (1.3–1.6) | 2 (1.2–2.8) | … | 2.1 (1.7–2.5) | 1.5 (1.2–1.9) | 0.7 (.2–1.2) | … |
| 10–19.9 | 13.7 (11.6–15.8) | 2.1 (1.8–2.6) | 7.3 (4.7–9.9) | … | 7.7 (7–8.4) | 1.7 (1.5–1.9) | 3.1 (2.3–3.9) | … | 2.4 (2.1–2.7) | 1.7 (1.4–2.1) | 1 (.5–1.5) | … |
| ≥20.0 | 17.8 (15.7–19.9) | 2.8 (2.4–3.2) | 11.4 (8.8–14) | … | 9.7 (9–10.4) | 2.1 (1.9–2.3) | 5.1 (4.2–6) | … | 3.1 (2.7–3.5) | 2.2 (1.8–2.7) | 1.7 (1.1–2.3) | … |
| Female-headed household, % | ||||||||||||
| <19.9 | 8.2 (6.9–9.5) | … | … | 3.2 (2.4–4.3) | 5.7 (5.3–6.1) | … | … | 2.3 (1.9–2.7) | 2 (1.7–2.3) | … | … | 1.7 (1.3–2.4) |
| 20–39.9 | 11.7 (9.9–13.5) | 1.4 (1.2–1.7) | 3.5 (1.3–5.7) | … | 7.3 (6.7–7.9) | 1.3 (1.2–1.4) | 1.6 (.9–2.3) | … | 2.4 (2.1–2.7) | 1.2 (1–1.4) | 0.4 (0–.8) | … |
| ≥40.0 | 17.2 (15.1–19.3) | 2.1 (1.8–2.4) | 9 (6.6–11.4) | … | 9.7 (9–10.4) | 1.7 (1.6–1.9) | 4 (3.2–4.8) | … | 2.9 (2.5–3.3) | 1.4 (1.2–1.7) | 0.9 (.4–1.4) | … |
| Employed, % | ||||||||||||
| <49.9 | 14.6 (13.1–16.1) | … | … | 2.4 (1.7–3.3) | 8.2 (7.7–8.7) | … | … | 1.7 (1.4–2) | 2.6 (2.3–2.9) | … | … | 1.7 (1.2–2.4) |
| ≥50.0 | 9.5 (8.2–10.8) | 0.7 (.5–.8) | –5.1 (–7 to –3.2) | … | 6.3 (5.9–6.7) | 0.8 (.7–.8) | –1.9 (–2.5 to –1.3) | … | 2 (1.7–2.3) | 0.8 (.6–.9) | –0.6 (–1 to –.2) | … |
| Single parent–headed household, % | ||||||||||||
| <19.9 | 6.9 (5.5–8.3) | … | … | 3.9 (2.8–5.3) | 5.1 (4.6–5.6) | … | … | 2.5 (2.1–3) | 1.6 (1.3–1.9) | … | … | 2.2 (1.6–3) |
| 20–39.9 | 10.5 (8.9–12.1) | 1.5 (1.2–1.9) | 3.6 (1.5–5.7) | … | 6.8 (6.3–7.3) | 1.3 (1.2–1.5) | 1.7 (1–2.4) | … | 2.5 (2.2–2.8) | 1.6 (1.3–1.9) | 0.9 (.5–1.3) | … |
| ≥40.0 | 16.8 (15–18.6) | 2.4 (2.1–2.8) | 9.9 (7.6–12.2) | … | 9.5 (8.9–10.1) | 1.9 (1.7–2) | 4.4 (3.6–5.2) | … | 2.9 (2.5–3.3) | 1.8 (1.5–2.1) | 1.3 (.8–1.8) | … |
| Black or African American alonea, % | ||||||||||||
| <19.9 | 9.5 (8.3–10.7) | … | … | 2.9 (2.1–3.9) | 6.1 (5.7–6.5) | … | … | 2.4 (2–2.8) | 2.4 (2.2–2.6) | … | … | 0.9 (.7–1.3) |
| 20–39.9 | 11.3 (9–13.6) | 1.2 (.9–1.5) | 1.8 (–.8 to 4.4) | … | 7.3 (6.5–8.1) | 1.2 (1.1–1.4) | 1.2 (.3–2.1) | … | 2.1 (1.6–2.6) | 0.9 (.7–1.2) | –0.3 (–.9 to .3) | … |
| 40–59.9 | 15.4 (11.3–19.5) | 1.6 (1.2–2.1) | 5.9 (1.6–10.2) | … | 8.8 (7.4–10.2) | 1.4 (1.2–1.7) | 2.7 (1.2–4.2) | … | 2.3 (1.6–3) | 1 (.7–1.3) | –0.1 (–.9 to .7) | … |
| ≥60.0 | 18.6 (16–21.2) | 2 (1.7–2.3) | 9.1 (6.3–11.9) | … | 10.7 (9.8–11.6) | 1.8 (1.6–1.9) | 4.6 (3.6–5.6) | … | 2.4 (1.9–2.9) | 1 (.8–1.3) | 0 (–.6 to .6) | … |
An RII >1 with CIs that do not include 1 would indicate a statistically significant increased risk for invasive pneumococcal disease for the most impoverished group.
Abbreviations: CI, confidence interval; PCV7, 7-valent pneumococcal conjugate vaccine; PCV13, 13-valent pneumococcal conjugate vaccine; RII, relative index of inequality.
aPercentage Black or African American alone indicates the percentage of the population that reported only black/African American as their race.
Average Incidence Rates per 100 000 Person-Years and Relative Rates of 13-Valent Pneumococcal Conjugate Vaccine Serotype Invasive Pneumococcal Disease by Neighborhood-Level Socioeconomic Factors—Data From 20 Counties in Tennessee, 1998–2016
| Characteristic . | Pre-PCV7 (1998–1999) (n = 601) . | . | . | . | Pre-PCV13 (2001–2009) (n = 2032) . | . | . | . | Post-PCV13 (2011–2016) (n = 561) . | . | . | . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . |
| Below poverty level, % | ||||||||||||
| <5 | 6.4 (4.9–7.9) | … | … | 3.9 (2.9–5.3) | 4.6 (4.1–5.1) | … | … | 2.5 (2.1–2.9) | 1.4 (1–1.8) | … | … | 2.3 (1.7–3.1) |
| 5–9.9 | 9 (7.3–10.7) | 1.4 (1.1–1.8) | 2.6 (.3–4.9) | … | 6.6 (6–7.2) | 1.4 (1.3–1.6) | 2 (1.2–2.8) | … | 2.1 (1.7–2.5) | 1.5 (1.2–1.9) | 0.7 (.2–1.2) | … |
| 10–19.9 | 13.7 (11.6–15.8) | 2.1 (1.8–2.6) | 7.3 (4.7–9.9) | … | 7.7 (7–8.4) | 1.7 (1.5–1.9) | 3.1 (2.3–3.9) | … | 2.4 (2.1–2.7) | 1.7 (1.4–2.1) | 1 (.5–1.5) | … |
| ≥20.0 | 17.8 (15.7–19.9) | 2.8 (2.4–3.2) | 11.4 (8.8–14) | … | 9.7 (9–10.4) | 2.1 (1.9–2.3) | 5.1 (4.2–6) | … | 3.1 (2.7–3.5) | 2.2 (1.8–2.7) | 1.7 (1.1–2.3) | … |
| Female-headed household, % | ||||||||||||
| <19.9 | 8.2 (6.9–9.5) | … | … | 3.2 (2.4–4.3) | 5.7 (5.3–6.1) | … | … | 2.3 (1.9–2.7) | 2 (1.7–2.3) | … | … | 1.7 (1.3–2.4) |
| 20–39.9 | 11.7 (9.9–13.5) | 1.4 (1.2–1.7) | 3.5 (1.3–5.7) | … | 7.3 (6.7–7.9) | 1.3 (1.2–1.4) | 1.6 (.9–2.3) | … | 2.4 (2.1–2.7) | 1.2 (1–1.4) | 0.4 (0–.8) | … |
| ≥40.0 | 17.2 (15.1–19.3) | 2.1 (1.8–2.4) | 9 (6.6–11.4) | … | 9.7 (9–10.4) | 1.7 (1.6–1.9) | 4 (3.2–4.8) | … | 2.9 (2.5–3.3) | 1.4 (1.2–1.7) | 0.9 (.4–1.4) | … |
| Employed, % | ||||||||||||
| <49.9 | 14.6 (13.1–16.1) | … | … | 2.4 (1.7–3.3) | 8.2 (7.7–8.7) | … | … | 1.7 (1.4–2) | 2.6 (2.3–2.9) | … | … | 1.7 (1.2–2.4) |
| ≥50.0 | 9.5 (8.2–10.8) | 0.7 (.5–.8) | –5.1 (–7 to –3.2) | … | 6.3 (5.9–6.7) | 0.8 (.7–.8) | –1.9 (–2.5 to –1.3) | … | 2 (1.7–2.3) | 0.8 (.6–.9) | –0.6 (–1 to –.2) | … |
| Single parent–headed household, % | ||||||||||||
| <19.9 | 6.9 (5.5–8.3) | … | … | 3.9 (2.8–5.3) | 5.1 (4.6–5.6) | … | … | 2.5 (2.1–3) | 1.6 (1.3–1.9) | … | … | 2.2 (1.6–3) |
| 20–39.9 | 10.5 (8.9–12.1) | 1.5 (1.2–1.9) | 3.6 (1.5–5.7) | … | 6.8 (6.3–7.3) | 1.3 (1.2–1.5) | 1.7 (1–2.4) | … | 2.5 (2.2–2.8) | 1.6 (1.3–1.9) | 0.9 (.5–1.3) | … |
| ≥40.0 | 16.8 (15–18.6) | 2.4 (2.1–2.8) | 9.9 (7.6–12.2) | … | 9.5 (8.9–10.1) | 1.9 (1.7–2) | 4.4 (3.6–5.2) | … | 2.9 (2.5–3.3) | 1.8 (1.5–2.1) | 1.3 (.8–1.8) | … |
| Black or African American alonea, % | ||||||||||||
| <19.9 | 9.5 (8.3–10.7) | … | … | 2.9 (2.1–3.9) | 6.1 (5.7–6.5) | … | … | 2.4 (2–2.8) | 2.4 (2.2–2.6) | … | … | 0.9 (.7–1.3) |
| 20–39.9 | 11.3 (9–13.6) | 1.2 (.9–1.5) | 1.8 (–.8 to 4.4) | … | 7.3 (6.5–8.1) | 1.2 (1.1–1.4) | 1.2 (.3–2.1) | … | 2.1 (1.6–2.6) | 0.9 (.7–1.2) | –0.3 (–.9 to .3) | … |
| 40–59.9 | 15.4 (11.3–19.5) | 1.6 (1.2–2.1) | 5.9 (1.6–10.2) | … | 8.8 (7.4–10.2) | 1.4 (1.2–1.7) | 2.7 (1.2–4.2) | … | 2.3 (1.6–3) | 1 (.7–1.3) | –0.1 (–.9 to .7) | … |
| ≥60.0 | 18.6 (16–21.2) | 2 (1.7–2.3) | 9.1 (6.3–11.9) | … | 10.7 (9.8–11.6) | 1.8 (1.6–1.9) | 4.6 (3.6–5.6) | … | 2.4 (1.9–2.9) | 1 (.8–1.3) | 0 (–.6 to .6) | … |
| Characteristic . | Pre-PCV7 (1998–1999) (n = 601) . | . | . | . | Pre-PCV13 (2001–2009) (n = 2032) . | . | . | . | Post-PCV13 (2011–2016) (n = 561) . | . | . | . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . | Incidence (95% CI) . | Rate Ratio (95% CI) . | Rate Difference (95% CI) . | RII (95% CI) . |
| Below poverty level, % | ||||||||||||
| <5 | 6.4 (4.9–7.9) | … | … | 3.9 (2.9–5.3) | 4.6 (4.1–5.1) | … | … | 2.5 (2.1–2.9) | 1.4 (1–1.8) | … | … | 2.3 (1.7–3.1) |
| 5–9.9 | 9 (7.3–10.7) | 1.4 (1.1–1.8) | 2.6 (.3–4.9) | … | 6.6 (6–7.2) | 1.4 (1.3–1.6) | 2 (1.2–2.8) | … | 2.1 (1.7–2.5) | 1.5 (1.2–1.9) | 0.7 (.2–1.2) | … |
| 10–19.9 | 13.7 (11.6–15.8) | 2.1 (1.8–2.6) | 7.3 (4.7–9.9) | … | 7.7 (7–8.4) | 1.7 (1.5–1.9) | 3.1 (2.3–3.9) | … | 2.4 (2.1–2.7) | 1.7 (1.4–2.1) | 1 (.5–1.5) | … |
| ≥20.0 | 17.8 (15.7–19.9) | 2.8 (2.4–3.2) | 11.4 (8.8–14) | … | 9.7 (9–10.4) | 2.1 (1.9–2.3) | 5.1 (4.2–6) | … | 3.1 (2.7–3.5) | 2.2 (1.8–2.7) | 1.7 (1.1–2.3) | … |
| Female-headed household, % | ||||||||||||
| <19.9 | 8.2 (6.9–9.5) | … | … | 3.2 (2.4–4.3) | 5.7 (5.3–6.1) | … | … | 2.3 (1.9–2.7) | 2 (1.7–2.3) | … | … | 1.7 (1.3–2.4) |
| 20–39.9 | 11.7 (9.9–13.5) | 1.4 (1.2–1.7) | 3.5 (1.3–5.7) | … | 7.3 (6.7–7.9) | 1.3 (1.2–1.4) | 1.6 (.9–2.3) | … | 2.4 (2.1–2.7) | 1.2 (1–1.4) | 0.4 (0–.8) | … |
| ≥40.0 | 17.2 (15.1–19.3) | 2.1 (1.8–2.4) | 9 (6.6–11.4) | … | 9.7 (9–10.4) | 1.7 (1.6–1.9) | 4 (3.2–4.8) | … | 2.9 (2.5–3.3) | 1.4 (1.2–1.7) | 0.9 (.4–1.4) | … |
| Employed, % | ||||||||||||
| <49.9 | 14.6 (13.1–16.1) | … | … | 2.4 (1.7–3.3) | 8.2 (7.7–8.7) | … | … | 1.7 (1.4–2) | 2.6 (2.3–2.9) | … | … | 1.7 (1.2–2.4) |
| ≥50.0 | 9.5 (8.2–10.8) | 0.7 (.5–.8) | –5.1 (–7 to –3.2) | … | 6.3 (5.9–6.7) | 0.8 (.7–.8) | –1.9 (–2.5 to –1.3) | … | 2 (1.7–2.3) | 0.8 (.6–.9) | –0.6 (–1 to –.2) | … |
| Single parent–headed household, % | ||||||||||||
| <19.9 | 6.9 (5.5–8.3) | … | … | 3.9 (2.8–5.3) | 5.1 (4.6–5.6) | … | … | 2.5 (2.1–3) | 1.6 (1.3–1.9) | … | … | 2.2 (1.6–3) |
| 20–39.9 | 10.5 (8.9–12.1) | 1.5 (1.2–1.9) | 3.6 (1.5–5.7) | … | 6.8 (6.3–7.3) | 1.3 (1.2–1.5) | 1.7 (1–2.4) | … | 2.5 (2.2–2.8) | 1.6 (1.3–1.9) | 0.9 (.5–1.3) | … |
| ≥40.0 | 16.8 (15–18.6) | 2.4 (2.1–2.8) | 9.9 (7.6–12.2) | … | 9.5 (8.9–10.1) | 1.9 (1.7–2) | 4.4 (3.6–5.2) | … | 2.9 (2.5–3.3) | 1.8 (1.5–2.1) | 1.3 (.8–1.8) | … |
| Black or African American alonea, % | ||||||||||||
| <19.9 | 9.5 (8.3–10.7) | … | … | 2.9 (2.1–3.9) | 6.1 (5.7–6.5) | … | … | 2.4 (2–2.8) | 2.4 (2.2–2.6) | … | … | 0.9 (.7–1.3) |
| 20–39.9 | 11.3 (9–13.6) | 1.2 (.9–1.5) | 1.8 (–.8 to 4.4) | … | 7.3 (6.5–8.1) | 1.2 (1.1–1.4) | 1.2 (.3–2.1) | … | 2.1 (1.6–2.6) | 0.9 (.7–1.2) | –0.3 (–.9 to .3) | … |
| 40–59.9 | 15.4 (11.3–19.5) | 1.6 (1.2–2.1) | 5.9 (1.6–10.2) | … | 8.8 (7.4–10.2) | 1.4 (1.2–1.7) | 2.7 (1.2–4.2) | … | 2.3 (1.6–3) | 1 (.7–1.3) | –0.1 (–.9 to .7) | … |
| ≥60.0 | 18.6 (16–21.2) | 2 (1.7–2.3) | 9.1 (6.3–11.9) | … | 10.7 (9.8–11.6) | 1.8 (1.6–1.9) | 4.6 (3.6–5.6) | … | 2.4 (1.9–2.9) | 1 (.8–1.3) | 0 (–.6 to .6) | … |
An RII >1 with CIs that do not include 1 would indicate a statistically significant increased risk for invasive pneumococcal disease for the most impoverished group.
Abbreviations: CI, confidence interval; PCV7, 7-valent pneumococcal conjugate vaccine; PCV13, 13-valent pneumococcal conjugate vaccine; RII, relative index of inequality.
aPercentage Black or African American alone indicates the percentage of the population that reported only black/African American as their race.
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