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. 2021 Jul 1;5(13):2717–2724. doi: 10.1182/bloodadvances.2021004288

Table 4.

Multivariable model showing risk factors associated with pain as presenting symptom during COVID-19 in children and adults

Variable Pain during COVID-19
RR 95% CI P
Children
 Hydroxyurea 0.96 0.73-1.26 .76
 Prior acute care visits for pain*
  1-2 vs 0 4.46 2.48-8.02 <.0001
  >2 vs 0 6.69 3.88-11.54 <.0001
 SCD renal 1.50 1.10-2.05 .0104
Adults
 Sex, male vs female 0.86 0.75-0.99 .04
 Hydroxyurea 0.86 0.76-0.98 .02
 Prior acute care visits for pain*
  1-2 vs 0 1.92 1.28-2.88 .002
  >2 vs 0 2.19 1.51-3.16 <.0001
 SCD heart/lung 1.12 1.001-1.26 .048

P < .05 was considered significant

*Hospitalization and/or ED treat-and-release visit requiring IV opioids for pain in the last 3 years.

†Albuminuria, decreased renal function, and/or SCD nephropathy.

‡Acute chest syndrome in the last 3 years and/or pulmonary hypertension.

None of the other covariates were significant (SCD brain, non-SCD neurobehavioral, non-SCD lung, non-SCD heart comorbidities).