|
| Author (year) | Prevalence | Definition |
|
| Perris (1966) [12] | 4.5% among all BD patients | M ≥ 1, D = 0 |
|
| Abrams and Taylor (1974) [13] | 28% of BD I patients | M-number not defined, D = 0 |
|
| Nurnberger et al. (1979) [18] | 15.7% of BD I patients | M ≥ 1 hospitalization, D = no hospitalization or somatic treatment |
|
| Abrams et al. (1979) [14] | 18% of BD patients | M ≥ 2, D = 0 |
|
| Perris (1982) [10] | 1.1% of BD patients | M ≥ 1, D = 0 |
|
| Pfohl et al. (1982) [15] | 35.2% of hospitalized BD patients | M ≥ 1, D = 0 |
|
|
Rao et al. (1982) [16] | 2.7% of lithium clinic patients | Only M during follow-up, D = 0 |
|
| Venkoba Rao and Madhavan (1983) [17] | 12% of BD patients
(age of onset >60 years) | Only M during follow-up, D = 0 |
|
| Srinivasan et al. (1982) [19] | 40% of hospitalized BD patients | M ≥ 3, D = 0 |
|
| Margoob and Dutta (1988) [40] | 42% of all BD patients | M = not defined, D = not defined |
|
| Khanna et al. (1992) [20] | 44% of hospitalized BD patients | M ≥ 4, D = 0 |
|
| Avasthi et al. (1996) [21] | 6.45% of all affective disorders | M ≥ 3, D = 0 |
|
| Aghanwa (2001) [22] | 47.2% of all BD patients | M ≥ 3 (includes hypomania as well) and affective illness for at least 4 years, D = 0 |
|
| Yazici et al. (2002) [23] | 16.3% of BD I patients | M ≥ 4 and at least 4 years of follow-up, D = 0 |
|
| Perugi et al. (2007) [25] | 21.8% of hospitalized BD I patients | M ≥ 3 and affective illness of at least 10 years, D = 0 |
|
