Table 4

Clinical care outcomes by symptoms and ethnicity

WhiteSouth AsianChinese
Typical
(n=482)
Atypical
(n=148)
P valueTypical
(n=394)
Atypical
(n=94)
P valueTypical
(n=172)
Atypical
(n=44)
P value
Any midsternal pain/discomfortn=451n=116n=359n=71n=144n=32
Time to ER presentation (hours; if distinct time of onset) Mean (SD)6.43 (5.77)6.11 (5.53)0.5915.69 (5.35)7.17 (5.94)0.0375.92 (5.49)7.41 (6.10)0.176
Median (IQR)3.0 (6.5)3.0 (6.0)0.8723.0 (6.0)5.0 (6.5)0.1273.0 (6.0)6.0 (6.5)0.318
Time to CATH (hours)
Mean (SD)
3.35 (1.76)3.93 (1.57)0.0013.10 (1.80)3.10 (1.72)0.9753.09 (1.82)3.58 (1.72)0.134
Median (IQR)4.0 (2.0)5.0 (1.0)0.0023.0 (2.0)2.0 (2.0)0.8623.0 (2.0)5.0 (1.5)0.109
n (%)n (%)n (%)n (%)N (%)n (%)
CATH402 (83.4%)124 (83.8%)0.913359 (91.1%)81 (86.2%)0.148151 (87.8%)38 (86.4%)0.826
PCI228 (47.3%)60 (40.5%)0.149211 (53.6%)36 (38.3%)0.00881 (47.1%)19 (43.2%)0.777
CABG44 (9.1%)17 (11.5%)0.39638 (9.6%)16 (17.0%)0.04113 (7.6%)5 (11.4%)0.636
Any midsternal with left neck, shoulder, or arm pain/discomfortn=330n=237n=234n=196n=68n=108
Time to ER presentation (hours; if distinct time of onset) Mean (SD)6.41 (5.82)6.31 (5.57)0.8365.53 (5.35)6.42 (5.60)0.0926.0 (5.65)6.31 (5.62)0.726
Median (IQR)3.0 (6.5)3.0 (3.0)0.9262.0 (6.0)3.0 (6.5)0.0373.0 (6.0)3.0 (6.0)0.649
Time to CATH (hours)
Mean (SD)
3.40 (1.76)3.61 (1.68)0.1543.0 (1.77)3.2 (1.79)0.2413.28 (1.81)3.14 (1.81)0.615
Median (IQR)4.0 (2.0)5.0 (1.5)0.1923.0 (2.0)3.0 (2.0)0.2024.0 (2.0)3.0 (2.0)0.635
n (%)n (%)n (%)n (%)n (%)n (%)
CATH306 (86.0%)220 (80.3%)0.058235 (91.1%)205 (89.1%)0.46965 (82.3%)124 (90.5%)0.126
PCI172 (48.3%)116 (42.3%)0.135143 (55.4%)104 (45.2%)0.02441 (51.9%)59 (43.1%)0.361
CABG33 (9.3%)28 (10.2%)0.69030 (11.6%)24 (10.4%)0.6754 (5.1%)14 (10.2%)0.307
  • CABG, coronary‚ÄČartery bypass graft surgery; CATH, catheterisation; ER, emergency room; PCI, percutaneous‚ÄČcoronary intervention.