TABLE 1.
Population characteristics of adolescents and young adults included in the study, 2016–2021
| Total (n = 1 179 009) | |
|---|---|
| Age at index date, median (IQR), years | 13.0 (10.0,19.0) |
| Females, n (%) | 569 261 (48.3) |
| Sex: females | |
| Age group at entry (years), n (%) | |
| 10–14 | 314 823 (55.3) |
| 15–19 | 125 953 (22.1) |
| 20–24 | 128 485 (22.6) |
| Sex: males | |
| Age group at entry (years), n (%) | |
| 10–14 | 334 485 (54.9) |
| 15–19 | 137 313 (22.5) |
| 20–24 | 137 950 (22.6) |
| MEDEA deprivation index, n (%) ( a ) | |
| First, least deprived | 168 451 (14.3) |
| Second | 168 044 (14.3) |
| Third | 167 388 (14.2) |
| Fourth | 1 68 473 (14.3) |
| Fifth, most deprived | 177 897 (15.1) |
| Rural | 200 793 (17.0) |
| Missing | 127 963 (10.9) |
| Years of prior history at index date, median (IQR) | 10.0 (10.0,10.0) |
| Years contributed to the cohort, median (IQR) | 4.9 (2.4, 6.0) |
Abbreviations: IQR, Interquartile range; MEDEA, Mortalidad en áreas pequeñas Españolas y Desigualdades Socioeconómicas y Ambientales.
a
Rural was included as a category since the index cannot be calculated for people living in rural areas.