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. 2009 Apr 13;27(14):2339–2355. doi: 10.1200/JCO.2008.21.1953

Table 5.

Incidence Rates and Relative Risks by Time Period of Onset of Adverse Neurologic Outcomes109

Parameter Neurosensory Deficits
Focal Neurologic Dysfunction
Any Hearing Impairment Tinnitus Persistent Dizziness Legal Blindness in One or Both Eyes Cataracts Problems With Double Vision Any Coordination Problem Any Motor Problem Any Seizure Disorder
Reported outcome
    Yes*
        No. 192 171 155 211 48 278 784 425 401
        % 12 11 10 13 3 17 49 26 25
    No
        No. 1,402 1,422 1,439 1,384 1,557 1,315 757 1,159 1,114
        % 87 88 90 86 97 82 47 72 69
Diagnosis to end of treatment, yes
    No. of patients 46 45 76 92 6 130 408 196 141
    Rate 16.6 15.9 25.5 32.8 2.0 43.7 189.4 79.7 54.4
    95% CI 12.4 to 22.1 11.8 to 21.4 20.2 to 32.2 26.5 to 40.5 0.9 to 4.5 36.4 to 52.5 170.7 to 210.2 69.3 to 91.6 45.9 to 64.5
    RR§ 42.8 17.2 44.9 93.2 9.8 123.5 158.8 121.4 55.3
    95% CI 27.1 to 67.5 11.8 to 25.0 32.1 to 62.9 59.8 to 145.4 3.9 to 24.6 83.6 to 182.3 127.2 to 198.4 92.7 to 159.0 41.5 to 73.6
End of treatment to 5 years after diagnosis, yes
    No. of patients 58 33 26 77 11 73 189 94 101
    Rate 9.4 7.2 6.2 14.8 2.2 17.1 67.0 21.6 23.1
    95% CI 7.3 to 12.1 5.2 to 9.8 4.6 to 8.5 12.0 to 18.3 1.2 to 3.8 13.9 to 20.9 59.4 to 75.6 18.1 to 25.9 19.3 to 27.6
    RR§ 26.7 7.0 9.6 55.1 11.2 43.5 60.2 35.8 24.7
    95% CI 17.4 to 40.9 4.8 to 10.2 6.4 to 14.3 34.6 to 87.8 5.4 to 23.4 29.2 to 64.9 47.8 to 75.9 26.6 to 48.3 18.5 to 33.1
5 years after diagnosis to end of follow-up, yes
    No. of patients 76 59 35 19 22 41 74 85 105
    Rate 5.9 5.4 2.9 1.9 1.7 3.9 11.8 7.6 10.3
    95% CI 4.8 to 7.4 4.3 to 6.9 2.1 to 4.0 1.3 to 2.8 1.1 to 2.5 3.0 to 5.3 9.5 to 14.7 6.1 to 9.3 8.5 to 12.4
    RR§ 17.3 3.7 3.2 14.8 11.9 8.8 12.6 12.4 12.6
    95% CI 11.6 to 25.8 2.7 to 5.1 2.2 to 4.8 7.5 to 29.2 5.7 to 24.8 5.6 to 13.8 9.1 to 17.5 8.7 to 17.5 9.2 to 17.1

Abbreviation: RR, relative risk.

*

Excludes conditions prior to diagnosis.

Includes ″not sure″ and missing responses.

Rate per 1,000 person-years.

§

Adjusted for sex; relative to siblings.

P < .0001.