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Table 1 Baseline characteristics of study participants by allocation group collected from July 19, 2017 until October 10, 2017, across all 4 study sites in Landhi Town, Karachi

From: Effect of vaccine reminder and tracker bracelets on routine childhood immunization coverage and timeliness in urban Pakistan (2017-18): a randomized controlled trial

  Intervention A: Adapted Alma Sana Bracelet
(n = 482)
Intervention B: Star Bracelet
(n = 482)
Control
(n = 481)
Total
(n = 1445)
Age at BCG (in weeks), m (SD) 2.6 ± (2.4) 2.6 ± (2.6) 2.4 ± (2.2) 2.5 ± (2.4)
Enrolment Vaccine, n(%)
 BCG 217 (45.0) 200 (41.5) 216 (44.9) 633 (43.8)
 Penta-1 265 (55.0) 282 (58.5) 265 (55.1) 812 (56.2)
Female Child, n(%) 257 (53.3) 237 (49.2) 243 (50.5) 737 (51.0)
Age of Mother (in years), m (SD) 26.7 ± (4.7) 26.5 ± (4.6) 26.5 ± (4.7) 26.6 ± (4.6)
Age of Father (in years), m (SD) 31.8 ± (5.6) 31.6 ± (5.6) 31.9 ± (5.8) 31.8 ± (5.7)
Education of Father (in years), n(%)
 0 years 65 (13.5) 57 (11.8)**** 87 (18.1) 209 (14.5)
 1 - 5 years 28 (5.8) 37 (7.7) 35 (7.3) 100 (6.9)
 6 - 10 years 255 (52.9)*** 251 (52.1)* 218 (45.3) 724 (50.1)
 11 – 12 years 96 (19.9) 77 (16.0) 83 (17.3) 256 (17.7)
 ≥ 13 years 38 (7.9)** 60 (12.4) 58 (12.0) 156 (10.8)
Mean years, m (SD) 8.8 ± (4.2) 8.9 ± (4.2) 8.4 ± (4.7) 8.7 + (4.4)
Education of Mother (in years), n(%)
 0 years 86 (17.8) 76 (15.8) 84 (17.5) 246 (17.0)
 1 - 5 years 56 (11.6) 49 (10.2) 56 (11.6) 161 (11.1)
 6 - 10 years 221 (45.9) 233 (48.3) 219 (45.5) 673 (46.6)
 11 - 12 years 79 (16.4) 83 (17.2) 73 (15.2) 235 (16.3)
 ≥ 13 years 40 (8.3) 41 (8.5) 49 (10.2) 130 (9.0)
Mean years, m (SD) 7.9 ± (4.5) 8.3 ± (4.4) 8.1 ± (4.5) 8.1 ± (4.5)
Father’s Occupation, n(%)
 Unskilled 74 (15.4) 81 (16.8) 90 (18.7) 245 (17.0)
 Skilled Labor 124 (25.7) 144 (29.8) 135 (28.1) 403 (27.9)
 Retail/Sales job 84 (17.4) 88 (18.3) 71 (14.8) 243 (16.8)
 Private job 104 (21.9) 88 (18.3) 97 (20.2) 289 (20.0)
 Other 96 (19.9) 81 (16.8) 88 (18.3) 265 (18.3)
Mother’s occupation, n(%)
 Housewife 477 (99.0) 481 (99.8) 476 (99.0) 1434 (99.2)
 Other 5 (1.0) 1 (0.2) 5 (1.0) 11 (0.8)
Ethnicity, n(%)
 Urdu 289 (60.0) 276 (57.3) 293 (60.9) 858 (59.4)
 Pashto 80 (16.6) 76 (15.8) 86 (17.9) 242 (16.8)
 Hindko 51 (10.6) 57 (11.8) 46 (9.6) 154 (10.7)
 Punjabi 20 (4.2) 28 (5.8) 30 (6.2) 78 (5.4)
 Sindhi 10 (2.1) 10 (2.1) 8 (1.7) 28 (1.9)
 Other 32 (6.6)* 35 (7.3)*** 18 (3.7) 85 (5.9)
Household Income per month (USD), m (SD) 176.8 ± (106) 175.3 ± (78) 173.0 ± (102) 175.0 ± (96.0)
Number of family members, m (SD) 8.0 ± (4.4) 8.2 ± (5.0) 8.3 ± (4.9) 8.2 ± (4.8)
Number of live births by child’s mother, m (SD) 2.5 ± (1.6) 2.5 ± (1.4) 2.6 ± (1.5) 2.6 ± (1.5)
Number of ANC visits by mother during last pregnancy, m (SD) 7.2 ± (3.2) 7.6 ± (3.2)*** 7.1 ± (3.0) 7.3 ± (3.1)
Place of delivery of child, n(%)
 Health Facility 440 (91.3) 431 (89.4) 444 (92.3) 1315 (91.0)
 Home 42 (8.7) 51 (10.6) 37 (7.7) 130 (9.0)
Who delivered child, n(%)
 Doctor 430 (89.2) 420 (87.1) 433 (90.0) 1283 (88.8)
 Midwife 34 (7.1) 47 (9.8) 33 (6.9) 114 (7.9)
 Nurse 16 (3.3) 14 (2.9) 12 (2.5) 42 (2.9)
 Other 2 (0.4) 1 (0.2) 3 (0.6) 6 (0.4)
Child has been breastfed (Yes), n(%) 457 (94.8) 453 (94.0) 455 (94.6) 1365 (94.5)
  1. *p < 0.05; **p < 0.04; ***p < 0.02; **** p < 0.01
  2. BCG Bacille Calmette Guérin, SD Standard Deviation, m mean, ANC Antenatal Care, USD US Dollar