Summary statistics by hydroxyurea use (ever)
| Variable . | n . | Never used hydroxyurea (n = 907) . | Used hydroxyurea (n = 1240) . | P value∗ . |
|---|---|---|---|---|
| Sex | 2146 | 0.4 | ||
| Female | 469 (52%) | 618 (50%) | ||
| Male | 437 (48%) | 622 (50%) | ||
| Years in dataframe (sd) | 2147 | 4.2 (3.8) | 7.1 (3.8) | <0.001 |
| Years on hydroxyurea (sd) | 2147 | 0.0 (0.0) | 5.1 (3.2) | <0.001 |
| Insurance | 2147 | 0.002 | ||
| Commercial | 209 (23%) | 330 (27%) | ||
| Medicaid | 501 (55%) | 711 (57%) | ||
| Uninsured/none listed | 197 (22%) | 199 (16%) |
| Variable . | n . | Never used hydroxyurea (n = 907) . | Used hydroxyurea (n = 1240) . | P value∗ . |
|---|---|---|---|---|
| Sex | 2146 | 0.4 | ||
| Female | 469 (52%) | 618 (50%) | ||
| Male | 437 (48%) | 622 (50%) | ||
| Years in dataframe (sd) | 2147 | 4.2 (3.8) | 7.1 (3.8) | <0.001 |
| Years on hydroxyurea (sd) | 2147 | 0.0 (0.0) | 5.1 (3.2) | <0.001 |
| Insurance | 2147 | 0.002 | ||
| Commercial | 209 (23%) | 330 (27%) | ||
| Medicaid | 501 (55%) | 711 (57%) | ||
| Uninsured/none listed | 197 (22%) | 199 (16%) |
Unit of analysis for this table is individual person.
Mean (standard deviation [sd]) for continuous variables; n (%) for categorical variables.
1945 children were classified as HbSS, 71 as HbSβ0, and 131 as SCA unspecified (HbSS or HbSβ0).
Pearson's Chi-squared test; Wilcoxon rank sum test.