Table 1.
Prevalence of coronary heart disease in the study population in 2010–2012.
| Age in years | Pre-existing CHD |
Newly diagnosed by positive ECG |
Newly diagnosed by symptoms (among ECG negative) |
Prevalence of CHD (pre-existing/symptoms/ECG positive), % |
||||
|---|---|---|---|---|---|---|---|---|
| Males | Females | Males | Females | Males | Females | Males | Females | |
| Rural | ||||||||
| 30–34 | 0/198 | 0/308 | 0/187 | 5/298 | 3/187 | 10/292 | 3/187 (1.6) | 15/297 (5.1) |
| 35–39 | 1/233 | 0/343 | 1/222 | 1/334 | 5/220 | 14/333 | 7/223 (3.1) | 15/334 (4.5) |
| 40–44 | 2/223 | 0/325 | 1/203 | 4/317 | 3/201 | 14/311 | 6/204 (2.9) | 18/315 (5.7) |
| 45–49 | 0/254 | 2/290 | 3/242 | 2/280 | 1/239 | 15/278 | 4/242 (1.7) | 19/282 (6.7) |
| 50–54 | 3/223 | 2/256 | 0/210 | 4/250 | 2/210 | 13/246 | 5/213 (2.3) | 19/252 (7.5) |
| 55–59 | 2/172 | 2/218 | 2/163 | 7/207 | 5/161 | 20/200 | 9/165 (5.5) | 29/209 (13.9) |
| 60–64 | 4/192 | 3/203 | 4/181 | 8/191 | 6/178 | 13/183 | 14/186 (7.5) | 24/194 (12.4) |
| Total (%) | 12/1497 (0.80) | 9/1949 (0.46) | 11/1410 (0.78) | 31/1878 (1.65) | 25/1397 (1.79) | 99/1843 (5.37) | 48/1420a (3.38) | 139/1883a (7.38) |
| Urban | ||||||||
| 30–34 | 1/119 | 0/180 | 1/109 | 8/175 | 2/108 | 11/167 | 4/110 (3.6) | 19/175 (10.9) |
| 35–39 | 0/140 | 0/245 | 1/130 | 11/231 | 4/129 | 11/220 | 5/130 (3.8) | 22/231 (9.5) |
| 40–44 | 4/153 | 1/182 | 1/136 | 10/172 | 1/135 | 15/162 | 6/140 (4.3) | 26/173 (15.0) |
| 45–49 | 6/149 | 0/188 | 2/135 | 17/182 | 3/133 | 15/165 | 11/141 (7.8) | 32/182 (17.6) |
| 50–54 | 2/109 | 0/133 | 3/103 | 9/127 | 3/100 | 6/118 | 8/105 (7.6) | 15/127 (11.8) |
| 55–59 | 9/87 | 4/114 | 0/74 | 4/106 | 2/74 | 7/102 | 11/83 (13.3) | 15/110 (13.6) |
| 60–64 | 4/97 | 9/120 | 8/84 | 6/106 | 1/76 | 5/100 | 13/88 (14.8) | 20/115 (17.4) |
| Total (%) | 26/854 (0.30) | 14/1162 (1.20) | 16/771 (2.08) | 65/1099 (5.91) | 16/755 (2.12) | 70/1034 (6.77) | 58/797a (7.28) | 149/1113a (13.39) |
a
Denominator excludes those without prior CHD with either ECG or symptoms missing.