Table 4. Side effects of IGF-1 therapy as reported in different studies*1.
| Study | Ranke et al. (16) | Guevara et al. (15) | Chernausek et al. (20) | |
| Event | Placebo | IGF-I | ||
| N = 33 | N = 9 | N = 7 | N = 76 | |
| Hypoglycemia | 13 (39%) | 6 (67%) | 6 (87%) | 37 (49%) |
| Tonsillar/adenoidal | 17 (22%) | |||
| hypertrophy | ||||
| Tonsillectomy/ | 2 (9%9 | 17 (22%) | ||
| adenotomy | ||||
| Hypertrophy | 8 (35%) | |||
| of the thymus | ||||
| Sleep apnea | 3 (4%) | |||
| Lipohypertrophy | 7 (21%) | 24 (32%) | ||
| at injection site | ||||
| Headache | 21 (64%) | 2 (22%) | 2 (29%) | |
| Pain at injection site | 16 (48%) | 3 (33%) | 3 (43%) | |
*1 Side effects are documented systematically in these studies