Table 1.
The sex ratio among 4351 new retinoblastoma patients in 2017, and corresponding weighted sex ratio at birth.
| Sample | Countries n (%) |
Patients n (%) |
Males n (%) |
Females n (%) |
Sex ratio (95% CI) |
Weighted sex ratio at birth | p value |
|---|---|---|---|---|---|---|---|
| Whole sample | |||||||
| Total | 153 (100) | 4351 (100) | 2375 (54.6) | 1976 (45.4) | 1.20 (1.13–1.28) | 1.07 | <0.001 |
| Economic grouping | |||||||
| Low | 28 (18.3) | 533 (12.3) | 284 (53.3) | 249 (46.7) | 1.14 (0.94–1.39) | 1.04 | 0.29 |
| Lower-middle | 44 (28.8) | 1940 (44.6) | 1067 (55.0) | 873 (45.0) | 1.22 (1.10–1.35) | 1.07 | 0.019 |
| Upper-middle | 37 (24.2) | 1212 (27.9) | 654 (54.0) | 558 (46.0) | 1.17 (1.03–1.33) | 1.09 | 0.22 |
| High | 44 (28.8) | 666 (15.3) | 370 (55.6) | 296 (44.4) | 1.25 (1.05–1.49) | 1.05 | 0.06 |
| Continent | |||||||
| Africa | 43 (28.1) | 1024 (23.5) | 544 (53.1) | 480 (46.9) | 1.13 (0.96–1.34) | 1.05 | 0.23 |
| Asia | 42 (27.5) | 2276 (52.3) | 1279 (56.2) | 997 (43.8) | 1.28 (1.15–1.44) | 1.06 | <0.001 |
| Europe | 40 (26.1) | 522 (12.0) | 282 (54.0) | 240 (46.0) | 1.18 (0.93–1.49) | 1.09 | 0.43 |
| LAC | 23 (15.0) | 312 (7.2) | 148 (47.4) | 164 (52.6) | 0.90 (0.67–1.22) | 1.04 | 0.23 |
| North America | 2 (0.7) | 200 (4.6) | 115 (57.5) | 85 (42.5) | 1.35 (0.93–2.01) | 1.05 | 0.09 |
| Oceania | 3 (2.0) | 17 (0.4) | 7 (41.2) | 10 (58.8) | 0.70 (0.13–1.43) | 1.06 | 0.40 |
CI Confidence interval, LAC Latin America and the Caribbean.