Table 3.
Mean and median survival by demographic factors
| Variables | Mean survival |
Median survival |
|||||
|---|---|---|---|---|---|---|---|
| Survival estimate | 95% CI |
Survival estimate | 95% CI |
p-value | |||
| LL | UL | LL | UL | ||||
| Type of thalassemia | <0.001 | ||||||
| Major | 50.07 | 48.54 | 51.60 | 57.00 | 51.32 | 62.67 | |
| Intermediate | 56.59 | 55.65 | 57.52 | 55.00 | NA | ||
| Sickle | 53.10 | 50.54 | 55.66 | 55.00 | NA | ||
| Not defined | 46.26 | 43.08 | 49.44 | 49 .00 | NA | ||
| Residence (city) | <0.001 | ||||||
| Tehran | 54.10 | 53.22 | 54.97 | 55.00 | NA | ||
| Mazandaran | 47.28 | 45.61 | 48.95 | 54.00 | 51.62 | 56.37 | |
| Bandar-e-Abbas | 42.21 | 40.82 | 43.60 | 45.00 | NA | ||
| Zahedan | 33.59 | 30.55 | 36.63 | 32.00 | 30.74 | 33.25 | |
| Iranshahr | 30.23 | 29.34 | 31.11 | 30.00 | NA | ||
| Gender | 0.001 | ||||||
| Men | 51.47 | 50.33 | 52.01 | NA | |||
| Women | 53.49 | 52.39 | 54.58 | NA | |||
| Total | 52.42 | 51.61 | 53.23 | 58.00 | NA | - | |
CI, confidence interval; LL, lower limit; UL, upper limit; NA, not applicable (since censored data).