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Table 1 Distribution of select maternal and infant characteristics, n (%), for the groups in the text message-based intervention acceptability study

From: Acceptability of a text message-based intervention for obesity prevention in infants from Hawai‘i and Puerto Rico WIC

  Total intervention (n = 102) Final analysis (n = 80) Lost to follow-up (n = 22) p-value
Site 0.068a
 Hawai‘i 52 (51.0) 37 (46.3) 15 (68.2)  
 Puerto Rico 50 (49.0) 43 (53.8) 7 (31.8)  
Maternal factors
 Pregravid BMI (mean [SD]) 26.6 [6.9] 26.7 [7.1] 26.4 [6.0] 0.873d
 Age (mean [SD]) 26.9 [5.3] 27.0 [5.0] 26.5 [6.4] 0.688d
Age group 0.024b*
 18–24 years 42 (41.2) 30 (37.5) 12 (54.6)  
 25–31 years 38 (37.3) 35 (43.8) 3 (13.6)  
 32–39 years 22 (21.6) 15 (18.8) 7 (31.8)  
Racec/ethnicity
 Hispanic 62 (62.0) 52 (65.0) 10 (50.0) 0.216a
 Native Hawaiian or Other Pacific Islander 22 (21.6) 17 (21.3) 5 (22.7) 0.881a
 Asian 22 (21.6) 16 (20.0) 6 (27.3) 0.463a
 American Indian or Alaska Native 5 (4.9) 5 (6.3) 0 (0) 0.582b
 Black or African American 15 (14.7) 14 (17.5) 1 (4.6) 0.181b
 White 34 (33.3) 31 (38.8) 3 (13.6) 0.039b*
Education 0.449b
 Less than college 49 (49.5) 38 (47.5) 11 (57.9)  
 Some college 22 (22.2) 20 (25.0) 2 (10.5)  
 College degree or higher 28 (28.3) 22 (27.5) 6 (31.6)  
Parity 0.126b
 1 41 (40.2) 28 (35.0) 13 (59.1)  
 2 36 (35.3) 32 (40.0) 4 (18.2)  
 3 15 (14.7) 11 (13.8) 4 (18.2)  
 4 or more 10 (9.8) 9 (11.3) 1 (4.6)  
Use of prenatal vitamins 97 (95.1) 78 (97.5) 19 (86.4) 0.066b
Pregnancy complications 43 (42.2) 32 (40.0) 11 (50.0) 0.400a
Took vitamins while breastfeeding 58 (56.9) 47 (58.8) 11 (50.0) 0.463a
Gestational age (weeks; mean [SD]) 39.0 [1.1] 39.1 [1.1] 38.8 [1.1] 0.426d
Gestational weight gain (lb; mean [SD]) 27.7 [11.2] 27.6 [11.1] 28.5 [12.1] 0.749d
Infant factors
 Male 51 (50.0) 39 (48.8) 12 (54.6) 0.630a
 Female 51 (50.0) 41 (51.3) 10 (45.5)  
Up-to-date with vaccinations 87 (85.3) 68 (85.0) 19 (86.4) 1.00b
  1. Note: Column percentages; p-value represents final analysis vs lost to follow-up;
  2. *p < 0.05; aAnalysis by Chi-square test; bAnalysis by Fisher’s exact test; cIncludes all races for mixed participants; dAnalysis by t-test, pooled