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Population proportion of Saudi adults (2017 projections) and examined sample for the survey on awareness of refractive surgery.
| Age group in years | n (%) | |||
|---|---|---|---|---|
| Male | Female | |||
| Census population | Surveyed sample | Census population | Surveyed sample | |
| 18–29 | 2,896,778 (50.7) | 1,237 (51.4) | 2,755,885 (50.3) | 3,106 (74.4) |
| 30–39 | 1,628,169 (28.5) | 337 (14.0) | 1,593,601 (29.1) | 403 (9.7) |
| ≥40 | 1,185,073 (20.8) | 831 (34.6) | 1,131,324 (20.6) | 666 (16.0) |
| Total | 5,710,020 (100.0) | 2,405 (100.0) | 5,480,810 (100.0) | 4,175 (100.0) |
