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. 2015 Jun 4;15:528. doi: 10.1186/s12889-015-1872-5

Table 2.

RNLI scores by income level

6 m n 9 m n 12 m n 18 m n 24 m n
All participants 83.4 67 85.5 63 86.8 65 87.8 61 89.6 55
(SD) (18.9) (18.6) (17.3) (18.6) (18.9)
Income > $20,000 85.8 61 87.6 57 88.8 60 89.7 56 92.3 50
(SD) (17.0) (17.9) (15.7) (17.1) (16.9)
Income ≤ $20,000 59.8 6 64.7 6 62.2 5 66.0 5 62.4 5
(SD) (22.7) (12.5) (19.6) (22.9) (17.4)