TABLE 2.
Weekly minutes of sunlight exposure, by age period, whether or not eyes were covered and by groups of healthy controls, and children with unilateral and bilateral retinoblastoma
| Age period (months) | Eyes | Weekly sunlight exposure Control | Weekly sunlight exposure Unilateral | Weekly sunlight exposure Bilateral | p‐value a |
|---|---|---|---|---|---|
| Mean ± SD (n) | Mean ± SD (n) | Mean ± SD (n) | |||
| ≤6 | 240.3 ± 475.7 (130) | 148.6 ± 249.9 (255) | 151.0 ± 403.0 (115) | .045 | |
| Outdoor | 264.7 ± 492.9 (118) | 159.3 ± 255.4 (238) | 165.4 ± 419.1 (105) | .008 | |
| Uncovered | 449.9 ± 742.0 (22) | 134.0 ± 180.5 (38) | 104.5 ± 139.3 (21) | .146 | |
| Covered | 219.6 ± 411.4 (94) | 164.7 ± 267.9 (199) | 180.6 ± 462.8 (84) | .043 | |
| 6.1–12 | 359.8 ± 496.3 (129) | 243.5 ± 332.7 (229) | 284.9 ± 393.3 (86) | .079 | |
| Outdoor | 368.3 ± 499.0 (126) | 250.1 ± 334.8 (223) | 298.8 ± 397.6 (82) | .070 | |
| Uncovered | 501.6 ± 605.3 (45) | 223.9 ± 285.0 (46) | 207.9 ± 186.6 (21) | .090 | |
| Covered | 298.4 ± 419.1 (79) | 258.2 ± 347.4 (176) | 335.0 ± 447.0 (60) | .397 | |
| 12.1–24 | 697.5 ± 759.8 (119) | 541.0 ± 608.7 (196) | 444.9 ± 463.2 (56) | .046 | |
| Outdoor | 697.5 ± 759.8 (119) | 543.8 ± 609.1 (195) | 453.0 ± 463.5 (53) | .066 | |
| Uncovered | 811.9 ± 783.0 (68) | 585.4 ± 627.9 (81) | 505.5 ± 567.5 (22) | .081 | |
| Covered | 545.0 ± 706.3 (51) | 514.2 ± 596.3 (114) | 439.9 ± 386.7 (31) | .907 |
Note: Outdoor: Sunlight exposure >0.
a
p‐value was from Kruskal‐Wallis test for group differences.