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Table 1 Characteristics at the beginning of an observation period

From: Is early measles vaccination associated with stronger survival benefits than later measles vaccination?

  Measles unvaccinated Measles Vaccinated P-value
Number (%) 9440 (30) 22,285 (70)  
Agea [median (IQR)] 10.9 (8.1–17.6) 22.6 (16.3–28.9) <.0001
Sex [n (%)]    0.68
 Male 4782 (51) 11,345 (51)  
Child MUAC (z-score)b [mean (SD)] −0.60 (1.15) −0.66 (1.07) <.0001
Region [n (%)]    <.0001
 Oio 1930 (30) 4477 (70)  
 Biombo 2287 (34) 4438 (66)  
 Gabu 1685 (24) 5352 (76)  
 Cacheu 1613 (31) 3524 (69)  
 Bafata 1925 (30) 4494 (70)  
Ethnicity [n (%)]c    <.0001
 Balanta 1701 (18) 3159 (14)  
 Papel 1904 (20) 3587 (16)  
 Mandinga, Fula 4419 (47) 12,268 (55)  
 Mandjaco, mancanha 789 (8) 1615 (7)  
 Others 578 (6) 1519 (7)  
Season of birth [n (%)]    .0008
 Dry season 5215 (55) 12,770 (57)  
Maternal schooling [n (%)]d    0.08
 0 years 6277 (66) 15,450 (69)  
 1–4 years 1111 (12) 2522 (11)  
  > 4 years 419 (4) 964 (4)  
Maternal agee [mean(SD)] 26.1 (6.9) 25.9 (6.9) 0.01
Maternal MUACf [mean [SD]] 254 (25) 256 (1.07) <.0001
Lives with motherg [n (%)]    <.0001
 Yes 9352 (99) 21,983 (99)  
 No 73 (1) 293 (1)  
Stopped breastfeedingh [n (%)]    <.0001
 Yes 1116 (12) 8976 (40)  
 No 8318 (88) 13,304 (60)  
Sleeping under a bed neti [n (%)]    0.13
 All year 3644 (39) 8882 (40)  
 Rainy season only 5496 (58) 12,736 (57)  
 No 280 (3) 645 (3)  
Year of card inspection [n (%)]    <.0001
 1999 1002 (11) 2283 (10)  
 2000 1202 (13) 2621 (12)  
 2001 1528 (16) 2766 (12)  
 2002 1524 (16) 2717 (12)  
 2003 1165 (12) 3186 (14)  
 2004 1113 (12) 3564 (16)  
 2005 1373 (15) 3614 (16)  
 2006 533 (6) 1535 (7)  
  1. aAge in months at the date of card inspection
  2. bMean Z-score MUAC-for-age using the 2006 WHO reference (Standard deviation). Missing information for 550 observations from measles-unvaccinated and children and 988 observations from measles-vaccinated children
  3. cMissing information for 49 observations from measles-unvaccinated children and 137 observations from measles-vaccinated children
  4. dMissing information for 1633 observations from measles-unvaccinated children and 3351 observations from measles-vaccinated children
  5. eMean maternal age at the date of the child’s birth (Standard deviation). Missing information for 50 observations from measles-unvaccinated children and 130 observations from measles-vaccinated children
  6. fMean maternal MUAC at registration of pregnancy (Standard deviation). Missing information for 5576 observations from measles-unvaccinated children and 12,731 observations from measles-vaccinated children
  7. gMissing information for 4 observations from measles-unvaccinated children and 3 observations from measles-vaccinated children
  8. hMissing information for 5 observations from measles-unvaccinated children and 5 observations from measles-vaccinated children
  9. iMissing information for 19 observations from measles-unvaccinated children and 22 observations from measles-vaccinated children
  10. Abbreviations: MUAC mid-upper-arm-circumference