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. Author manuscript; available in PMC: 2020 Sep 30.
Published in final edited form as: Vaccine. 2019 Sep 3;37(42):6192–6200. doi: 10.1016/j.vaccine.2019.08.046

Table 3.

Completion rates and timeliness for visits 2 and 3 of the primary immunization series

VISIT 2 VISIT 3a
Total Usual care Intervention Total Usual care Intervention
n(%) n(%) n(%) P-value n(%) n(%) n(%) P-value
Intention-to-treat (n=720) (n=362) (n=358) (n=66) (n=33) (n=329)
 Visit was on scheduled date 262 (36.4) 111 (30.7) 151 (42.2) .001 202 (30.5) 90 (27.0) 112 (34.0) .05
 Visit was up to 7 days late 484 (67.2) 230 (63.5) 254 (71.0) .03 392 (59.2) 191 (57.4) 201 (61.1) .33
 Visit was up to 14 days late 550 (76.4) 269 (74.3) 281 (78.5) .19 451 (68.1) 225 (67.6) 226 (68.7) .76
 Visit was up to 30 days late 599 (83 2) 296 (81.8) 303 (84.6) .30 509 (46.9) 256 (76.9) 253 (76.9) .99
 Visit was completed 663 (92.1) 333 (92.0) 330 (92.2) .92 586 (88.5) 297 (89.2) 289 (87.8) .59
Sent at least 1 text reminderb (n=663) (n=362) (n=301) (n=572) (n=333) (n=239)
 Visit was on scheduled date 243 (36.7) 111 (30.7) 132 (43.9) <.001 179 (31.3) 90 (27.0) 89 (37.2) .01
 Visit was up to 7 days late 446 (67.3) 230 (63.5) 216 (71.8) .02 347 (60.7) 191 (57.4) 156 (65.3) .06
 Visit was up to 14 days late 507 (76.5) 269 (74.3) 238 (79.1) .15 400 (69.9) 225 (67.6) 175 (73.2) .15
 Visit was up to 30 days late 552 (83.3) 296 (81.8) 256 (85.1) .26 449 (78.5) 256 (76.9) 193 (80.8) .27
 Visit was completed 613 (92.5) 333 (92.0) 280 (93.0) .62 510 (89.2) 297 (89.2) 213 (89.1) .98
a

Individuals who did not have a visit 2 and therefore did not receive a visit 3 scheduled date (n=29 usual care and n=28 intervention) or the visit 3 scheduled date was missing despite having a visit 2 (n=1 for intervention) were excluded from the visit 3 analysis since there was no scheduled vaccine visit date for these participants.

b

Visits for the intervention group that were not sent at least one text reminder prior to the scheduled visit date were excluded from the given visit analysis (n=57 for visit 2 and n=90 for visit 3).