Table 3 Preoperative demographics for Western versus Developing worlds
Factor | Whole study | Western | Developing | p Value |
|---|---|---|---|---|
Patients (N) | 855 | 437 | 418 | |
Follow-up (ptyrs) | 4078.0 | 2213.3 | 1864.8 | |
Age (mean—SD) | 49.0–12.6 | 54.5–9.8 | 43.3–12.6 | < 0.0001 |
Gender (N—% male) | 503–58.8 | 311–71.2 | 192–45.9 | < 0.0001 |
NYHA (N—%) | ||||
I | 69–8.1 | 64–14.6 | 5–1.2 | < 0.0001 |
II | 298–34.8 | 154–35.2 | 144–34.4 | |
III | 369–43.2 | 152–34.8 | 217–51.9 | |
IV | 78–9.1 | 48–11.0 | 30–7.2 | |
Unknown | 41–4.8 | 19–4.4 | 22–5.3 | |
Etiology (N—%) | ||||
Rheumatic | 344–41.6 | 30–7.9 | 314–70.1 | < 0.0001 |
Calcific | 246–29.8 | 194–51.2 | 52–11.6 | |
Prosthetic degeneration | 20–2.4 | 6–1.6 | 14–3.1 | |
Congenital | 109–13.2 | 92–24.3 | 17–3.8 | |
Endocarditis | 37–4.5 | 16–4.2 | 21–4.7 | |
Degenerative | 56–6.8 | 35–9.2 | 21–4.7 | |
Other | 15–1.8 | 6–1.6 | 9–2.0 | |
Primary rhythm (N—%) | ||||
Sinus | 627–75.2 | 364–87.5 | 263–62.9 | < 0.0001 |
Atrial fibrillation | 193–23.1 | 44–10.6 | 149–35.6 | |
Paced | 3–0.4 | 1–0.2 | 2–4.8 | |
Other | 11–1.3 | 7–1.7 | 4–9.6 | |
Aortic lesion (N—%) | ||||
Stenosis | 281–56.8 | 250–66.5 | 31–26.1 | < 0.0001 |
Regurgitation | 82–16.6 | 49–13.0 | 33–27.7 | |
Mixed | 130–26.3 | 77–20.5 | 53–44.5 | |
Other | 2–0.4 | 0–0.0 | 2–1.7 | |
Mitral lesion (N—%) | ||||
Stenosis | 80–23.2 | 13–26.0 | 67–22.7 | < 0.0001 |
Regurgitation | 68–19.7 | 21–42.0 | 47–15.9 | |
Mixed | 195–56.5 | 16–32.0 | 179–60.7 | |
Other | 2–0.6 | 0–0.0 | 2–0.7 | |
Weight in kg (mean—SD) | 73.2–22.1 | 86.0–19.8 | 60.4–16.1 | < 0.0001 |
Height in cm (mean—SD) | 166.5–11.2 | 172.1–9.7 | 161.0–9.7 | < 0.0001 |
Body surface area in m2 (mean—SD) | 1.80–0.29 | 1.98–0.23 | 1.62–0.21 | < 0.0001 |
Body mass index in kg/m2 (mean—SD) | 26.2–7.0 | 29.1–6.6 | 23.3–6.1 | < 0.0001 |