Table 3.
Comparison with other studies describing etiology of primary amenorrhea
| Etiology | Reindollar[10] 1960-80 | Tanmahasamut[11] 1992-2009 | Amin SV[14] 2006-12 | Kriplani[12] 2012-15 | Present study 2008-2017 |
|---|---|---|---|---|---|
| Region | USA | Thailand | India (South) | India (North) | India (North) |
| Sample size | 252 | 295 | 91 | 102 | 328 |
| Most common etiology | Gonadal dysgenesis (43%) | Mullerian agenesis (39.7%) | Mullerian agenesis (37.4%) | Mullerian agenesis (30.4%) | Hypogonado-tropic hypogonadism (35.5%) |
| Hypogonado-tropic hypogonadism | 9% | 9.2% | 9.9% | 14.7% | 35.5% |
| Physiologic delay | 14% | 7.7% | 5.8% | ||
| Crypto-menorrhea | 20.8% | 16.6% |