Table 2.
Least Square Mean ST height in μV Adjusted for Age in MESA Participants by Sex and Ethnicity
| Non‐Hispanic White | Chinese | African American | Hispanic | P Value* | |||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | (95% CI) | Mean | (95% CI) | Mean | (95% CI) | Mean | (95% CI) | ||
| Men | |||||||||
| ST Height at J Point | |||||||||
| Limb lead | |||||||||
| I | 19.9 | (18.4–21.4) | 26.8 | (24.2–29.4) | 32.3 | (30.6–34.2) | 26.2 | (24.3–28.2) | <0.0001 |
| II | 24.5 | (22.5–26.5) | 32.5 | (29.0–35.9) | 24.0 | (21.5–26.6) | 25.8 | (23.2–28.4) | 0.0005 |
| Chest lead | |||||||||
| V1 | 6.4 | (4.3–8.5) | 21.7 | (18.1–25.3) | 13.9 | (11.3–16.6) | 11.6 | (8.9–14.2) | <0.0001 |
| V2 | 49.2 | (45.6–52.7) | 96.4 | (90.4–102.4) | 81.2 | (76.7–85.6) | 60.5 | (56.0–64.9) | <0.0001 |
| V3 | 38.3 | (34.9–41.6) | 78.3 | (72.6–83.9) | 68.3 | (64.1–72.5) | 47.5 | (43.3–51.7) | <0.0001 |
| V4 | 24.1 | (21.2–27.0) | 49.2 | (44.3–54.1) | 48.5 | (44.9–52.2) | 30.4 | (26.8–34.1) | <0.0001 |
| V5 | 19.7 | (17.5–21.8) | 31.0 | (27.2–34.7) | 33.2 | (30.4–35.9) | 24.9 | (22.1–27.7) | <0.0001 |
| V6 | 21.4 | (19.7–23.0) | 27.1 | (24.2–30.0) | 27.5 | (25.4–29.6) | 24.3 | (22.1–26.4) | <0.0001 |
| ST Height at 60 ms | |||||||||
| Limb lead | |||||||||
| I | 29.7 | (28.2–31.3) | 43.7 | (41.4–46.3) | 40.8 | (38.9–42.7) | 37.6 | (35.6–39.5) | <0.0001 |
| II | 30.9 | (29.2–32.6) | 41.3 | (38.4–44.3) | 32.0 | (29.8–34.1) | 33.6 | (31.4–35.9) | <0.0001 |
| Chest lead | |||||||||
| V1 | 43.2 | (40.7–45.7) | 63.2 | (59.0–67.5) | 57.0 | (53.9–60.2) | 54.4 | (51.2–57.6) | <0.0001 |
| V2 | 141.0 | (136.4–145.6) | 211.0 | (203.2–218.9) | 184.8 | (179.0–190.6) | 166.2 | (160.4–172.1) | <0.0001 |
| V3 | 116.8 | (112.7–121.0) | 183.6 | (176.5–190.7) | 154.5 | (149.2–159.7) | 132.5 | (127.2–137.8) | <0.0001 |
| V4 | 76.6 | (73.4–79.9) | 124.4 | (118.8–129.9) | 102.1 | (98.0–106.3) | 86.7 | (82.6–90.9) | <0.0001 |
| V5 | 42.2 | (39.9–44.5) | 70.2 | (66.2–74.1) | 55.3 | (52.4–58.2) | 51.2 | (48.3–54.2) | <0.0001 |
| V6 | 24.2 | (22.5–25.9) | 41.6 | (38.6–44.5) | 30.4 | (28.3–32.6) | 29.4 | (27.2–31.6) | <0.0001 |
| Women | |||||||||
| ST Height at J Point | |||||||||
| Limb lead | |||||||||
| I | 13.7 | (12.2–15.2) | 16.2 | (13.6–18.9) | 28.4 | (26.6–30.2) | 19.3 | (17.3–21.2) | <0.0001 |
| II | 14.8 | (12.9–16.7) | 23.8 | (20.4–27.2) | 19.5 | (17.2–21.8) | 19.5 | (16.9–22.0) | <0.0001 |
| Chest lead | |||||||||
| V1 | 2.0 | (0.2–3.9) | 11.8 | (8.5–15.1) | 3.8 | (1.6–6.0) | 2.7 | (0.3–5.1) | <0.0001 |
| V2 | 23.9 | (20.9–26.9) | 53.6 | (48.4–58.9) | 43.0 | (39.6–46.5) | 29.7 | (25.9–33.5) | <0.0001 |
| V3 | 11.6 | (9.0–14.2) | 34.2 | (29.6–38.8) | 33.5 | (30.4–36.5) | 18.8 | (15.5–22.2) | <0.0001 |
| V4 | 6.2 | (3.9–8.4) | 20.1 | (16.0–24.1) | 28.0 | (25.3–30.7) | 12.6 | (9.6–15.5) | <0.0001 |
| V5 | 6.0 | (4.0–7.9) | 16.2 | (12.7–19.7) | 24.5 | (22.2–26.8) | 14.0 | (11.4–16.5) | <0.0001 |
| V6 | 11.8 | (10.2–13.3) | 17.4 | (14.7–20.2) | 22.9 | (21.1–24.8) | 17.0 | (15.0–19.0) | <0.0001 |
| ST Height at 60 ms | |||||||||
| Limb lead | |||||||||
| I | 11.1 | (9.8–12.4) | 20.4 | (18.1–22.7) | 24.6 | (23.0–26.1) | 17.8 | (16.1–19.5) | <0.0001 |
| II | 18.8 | (17.2–20.3) | 23.3 | (20.6–26.1) | 23.0 | (21.1–24.8) | 22.5 | (20.5–24.5) | 0.0007 |
| Chest lead | |||||||||
| V1 | 34.7 | (32.7–36.7) | 48.1 | (44.6–51.7) | 43.4 | (41.1–45.8) | 40.9 | (38.4–43.5) | <0.0001 |
| V2 | 83.6 | (80.2–87.0) | 124.9 | (118.9–130.9) | 111.9 | (107.9–115.9) | 99.0 | (94.6–103.4) | <0.0001 |
| V3 | 60.3 | (57.4–63.3) | 94.4 | (89.2–99.6) | 82.8 | (79.4–86.3) | 71.4 | (67.6–75.2) | <0.0001 |
| V4 | 36.2 | (33.8–38.6) | 60.2 | (55.9–64.4) | 59.0 | (56.1–61.8) | 46.8 | (43.7–49.9) | <0.0001 |
| V5 | 19.5 | (17.5–21.5) | 35.2 | (31.7–38.7) | 37.5 | (35.2–39.9) | 30.1 | (27.5–32.6) | <0.0001 |
| V6 | 8.8 | (7.4–10.3) | 19.7 | (17.1–22.3) | 18.6 | (16.9–20.3) | 15.7 | (13.9–17.6) | <0.0001 |
*P value for comparison to nonwhite Hispanic Group. Details of intergroup comparisons are included in the test.