Table 2
Comparison of respondents, non-respondents, and those not contacted in the post-CLT group
| Respondents (n = 68) | Non-respondents (n = 36) | Difference in proportions (respondents v non-respondents) | p Value | Not contacted (n = 25) | Difference in proportions (respondents v not-contacted) | p Value | |
|---|---|---|---|---|---|---|---|
| % (N) | % (N) | (95% CI) | % (N) | (95% CI) | |||
| Comparing white with all other ethnic groups using the UK Office for National Statistics classification.18 | |||||||
| Severity | |||||||
| Severe | 23 (16) | 28 (10) | 5 (−14 to 22) | 0.81 | 20 (5) | 3 (−15 to 22) | 0.94 |
| Moderate | 37 (25) | 33 (12) | 4 (−16 to 23) | 0.90 | 56 (14) | 19 (−4 to 42) | 0.15 |
| Mild | 40 (27) | 39 (14) | 1 (−19 to 21) | 0.90 | 24 (6) | 16 (−4 to 36) | 0.25 |
| Parent’s language | |||||||
| English | 98 (57) | 89 (25) | 9 (−3 to 21) | 0.19 | 69 (11) | 29 (6 to 52) | 0.001 |
| Other | 2 (1) | 11 (3) | 31 (5) | ||||
| Visual impairment in the family | |||||||
| Yes | 13 (7) | 46 (13) | 33 (12 to 54) | 0.002 | 23 (5) | 9 (−10 to 28) | 0.51 |
| No | 87 (48) | 54 (15) | 76 (18) | ||||
| Complexity of condition | |||||||
| Visual impairment alone | 60 (41) | 50 (18) | 10 (−10 to 30) | 0.42 | 48 (12) | 12 (−10 to 35) | 0.41 |
| Additional systemic problems | 40 (27) | 50 (18) | 52 (13) | ||||
| Ethnicity* | |||||||
| White | 85 (57) | 81 (30) | 4 (−11 to 19) | 0.80 | 71 (17) | 14 (−6 to 34) | 0.22 |
| Non-white | 15 (10) | 19 (7) | 29 (5) | ||||
| Deprivation (population quintiles) | |||||||
| 1st to 2nd or 3rd quintile | 69 (29) | 67 (15) | 2 (−21 to 25) | 0.83 | 44 (7) | 25 (−3 to 53) | 0.15 |
| 4th or 5th quintile | 31 (13) | 33 (7) | 56 (9) | ||||
| Deprivation index | |||||||
| Mean | −.18 | −0.9 | t = 1.26 | 0.21 | 1.58 | t = −2.89 | 0.005 |
| SD | 2.75 | 2.79 | 3.31 | ||||
| Age of child | |||||||
| Mean | 2.11 | 2.53 | t = −1.25 | 0.21 | 1.83 | t = .80 | 0.43 |
| SD | 1.67 | 1.56 | .87 | ||||
