Table 2.
Prevalence of Persistent DSM-IV posttraumatic stress disorder (PTSD) in the World Mental Health surveys (N = 71 083)
| Country | 12-month prevalence of PTSD among lifetime cases | 30-day prevalence of PTSD among 12-month cases | Sample size used | ||||
|---|---|---|---|---|---|---|---|
|
|
|
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| n | % | S.E. | n | % | S.E. | ||
| Low-lower middle income countries | 198 | 47.8 | 3.9 | 95 | 43.2 | 5.4 | 11 862 |
| Colombia | 25 | 34.2 | 9.6 | 6 | 29.2 | 13.7 | 2381 |
| Iraq | 61 | 46.1 | 6.2 | 23 | 33.7 | 9.4 | 4332 |
| Peru | 7 | 23.1 | 8.9 | 2 | 37.5 | 26.1 | 1801 |
| PRC China | 8 | 82.1 | 11.5 | 2 | 17.9 | 14 | 1628 |
| Ukraine | 97 | 58.9 | 5.3 | 62 | 59.2 | 7.5 | 1720 |
| Upper-middle income countries | 273 | 43.5 | 2.7 | 116 | 44.3 | 4.5 | 16 913 |
| Brazil | 81 | 48.8 | 4.9 | 35 | 44.8 | 8.4 | 2942 |
| Bulgaria | 45 | 61.9 | 4.9 | 27 | 69.3 | 10.4 | 2233 |
| Colombia (Medellin) | 39 | 26.4 | 5.3 | 9 | 26.9 | 9.2 | 1673 |
| Lebanon | 30 | 58.2 | 11.2 | 16 | 62.3 | 12.6 | 1031 |
| Mexico | 29 | 39.2 | 8.6 | 15 | 40.3 | 11.9 | 2362 |
| Romania | 16 | 64.6 | 8.7 | 6 | 47.7 | 14.1 | 2357 |
| South Africa | 33 | 31.7 | 5.5 | 8 | 20 | 7.4 | 4315 |
| High income countries | 1615 | 52.1 | 1.2 | 817 | 51.3 | 1.8 | 42 308 |
| Australia | 382 | 60 | 2.2 | 216 | 56.6 | 3.3 | 8463 |
| Belgium | 22 | 28 | 6.2 | 9 | 29.7 | 9.5 | 1043 |
| France | 58 | 59.5 | 6.8 | 23 | 44.8 | 8 | 1436 |
| Germany | 25 | 40.9 | 8.3 | 11 | 36.9 | 11.5 | 1323 |
| Israel | 25 | 37.3 | 5.9 | 10 | 44.1 | 10.3 | 4859 |
| Italy | 25 | 30 | 7.6 | 11 | 48.8 | 13.1 | 1779 |
| Japan | 19 | 55.4 | 7.1 | 6 | 35 | 14 | 1682 |
| New Zealand | 416 | 50 | 2.5 | 218 | 54.9 | 3.8 | 7312 |
| Northern Ireland | 129 | 57.5 | 3.8 | 61 | 48 | 6.4 | 1986 |
| Portugal | 77 | 42.6 | 4.5 | 32 | 42.3 | 6.5 | 2060 |
| Spain | 35 | 26.1 | 6.7 | 16 | 33.5 | 9 | 2121 |
| Spain (Murcia) | 26 | 32.1 | 8.5 | 16 | 47.4 | 9.5 | 1459 |
| The Netherlands | 50 | 62 | 8.3 | 27 | 39.3 | 10.8 | 1093 |
| The USA | 326 | 52.4 | 2.9 | 161 | 49.3 | 4.1 | 5692 |
| All countries combined | 2086 | 50.5 | 1 | 1028 | 49.8 | 1.6 | 71 083 |
| WHO regionsa | |||||||
| Region of the Americas | 507 | 46.9 | 2.2 | 228 | 45.9 | 3.3 | 16 851 |
| African Region | 33 | 31.7 | 5.5 | 8 | 20 | 7.4 | 4315 |
| Western Pacific Region | 825 | 56 | 1.6 | 442 | 55.3 | 2.5 | 19 085 |
| Eastern Mediterranean Region | 116 | 44.9 | 4.2 | 49 | 42.6 | 6.7 | 10 222 |
| Western European Region | 447 | 46.7 | 2.3 | 206 | 44.1 | 3.3 | 14 300 |
| Eastern European Region | 158 | 60.7 | 3.6 | 95 | 59.8 | 5.7 | 6310 |
| Comparison between countriesb | χ225 = 4.0*, p < 0.001 | χ225= 1.7*, p = 0.021 | |||||
| Comparison between low, middle and high income country groupsb | χ22 = 4.3*, p = 0.013 | χ22 = 1.8, p = 0.158 | |||||
| Comparison between WHO regionsb | χ25 = 7.1*, p < 0.001 | χ25 = 4.1*, p = 0.001 | |||||
a
Region of the Americas (Colombia, Mexico, Brazil, Peru, The United States, Medellin); African region (South Africa); Western Pacific region (PRC Beijing and Shanghai, Japan, Australia, New Zealand); Eastern Mediterranean region (Israel, Iraq, Lebanon); Western European region (Belgium, France, Germany, Italy, The Netherlands, Spain, Northern Ireland, Portugal, Murcia); Eastern European region (Romania, Bulgaria, Ukraine).
b
χ2 test of homogeneity to determine if there is variation in prevalence estimates across countries.