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Table 1 Description of study patients by genotype, mean age, follow up time and percentage uptake of targeted interventions by early or late presentation to the Sickle Cell Unit in Jamaica (N = 290)

From: The risk of acute events among patients with sickle cell disease in relation to early or late initiation of care at a specialist center: evidence from a retrospective cohort study

 

Early Intervention

(N = 113)

Late Intervention (N = 177)

 

SS

110 (97%)

168(95%)

 

0

3 (3%)

7 (4%)

 

S0A

0

2 (1%)

 

Mean Age at first visit, years(months)

0.2 (2.9)

2.3 (27.6)

t = 17.0; p < 0.010

Follow up time (years)

5.2

3.2

t= -17.0; p < 0.010

Proportion of patients diagnosed by newborn screening

103 (92%)

114 (64%)

χ2 = 90.6; p < 0.010

Proportion receiving Penicillin Prophylaxis

111 (98%)

134 (76%)

χ2 = 28.4; p < 0.010

Proportion receiving polyvalent pneumococcal vaccine

106 (93%)

156 (88%)

χ2 = 2.5; p = 0.111

Proportion with at least 2 doses PCV

35 (31%)

50 (28%)

χ2 = 0.2 ; p = 0.619