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TABLE 3

Vaccination Coverage by 19 and 36 Months of Age Among Preterm and Term/Postterm Infants

Vaccinea19 Months36 Months
Preterm, n = 1991Term/Postterm, n = 8302PbPreterm, n = 1727Term/Postterm, n = 7426Pb
No. (%)No. (%)No. (%)No. (%)
DTP/DTaP (4) 1159 (58.2) 5399 (65.0) <.001 1313 (76.0) 6201 (83.5) <.001 
Poliovirus (3) 1600 (80.4) 7156 (86.2) <.001 1437 (83.2) 6625 (89.2) <.001 
MMR (1) 1669 (83.8) 6809 (82.0) .06 1540 (89.2) 6598 (88.9) .70 
Hib (3) 1737 (87.2) 7424 (89.4) .005 1546 (89.5) 6815 (91.8) .003 
Hepatitis B (3) 1524 (76.5) 7005 (84.4) <.001 1368 (79.2) 6457 (87.0) <.001 
Varicella (1) 1624 (81.6) 6617 (79.7) .06 1521 (88.1) 6481 (87.3) .37 
PCV (4) 1407 (70.7) 6129 (73.8) .004 1380 (79.9) 6126 (82.5) .01 
Rotavirus (2) 1387 (69.7) 6799 (81.9) <.001 — — — 
Hepatitis A (2) — — — 1173 (67.9) 5112 (68.8) .46 
Influenzac 884 (44.4) 3708 (44.7) .83 430 (24.9) 1916 (25.8) .44 
Vaccinea19 Months36 Months
Preterm, n = 1991Term/Postterm, n = 8302PbPreterm, n = 1727Term/Postterm, n = 7426Pb
No. (%)No. (%)No. (%)No. (%)
DTP/DTaP (4) 1159 (58.2) 5399 (65.0) <.001 1313 (76.0) 6201 (83.5) <.001 
Poliovirus (3) 1600 (80.4) 7156 (86.2) <.001 1437 (83.2) 6625 (89.2) <.001 
MMR (1) 1669 (83.8) 6809 (82.0) .06 1540 (89.2) 6598 (88.9) .70 
Hib (3) 1737 (87.2) 7424 (89.4) .005 1546 (89.5) 6815 (91.8) .003 
Hepatitis B (3) 1524 (76.5) 7005 (84.4) <.001 1368 (79.2) 6457 (87.0) <.001 
Varicella (1) 1624 (81.6) 6617 (79.7) .06 1521 (88.1) 6481 (87.3) .37 
PCV (4) 1407 (70.7) 6129 (73.8) .004 1380 (79.9) 6126 (82.5) .01 
Rotavirus (2) 1387 (69.7) 6799 (81.9) <.001 — — — 
Hepatitis A (2) — — — 1173 (67.9) 5112 (68.8) .46 
Influenzac 884 (44.4) 3708 (44.7) .83 430 (24.9) 1916 (25.8) .44 

—, not applicable.

a

No. doses needed for each vaccine is listed in parentheses.

b

Coverage between preterm versus term/postterm infants was compared by using Pearson’s χ2 test.

c

Influenza: 2–3 doses (depending on birth month) by 19 mo and 4 doses by 36 mo.

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