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Table 3 Model-estimated birth weight distribution and mortality characteristics for the 2001 sample populations

From: Racial disparities in infant mortality: what has birth weight got to do with it and how large is it?

Birth Cohort Eur. Am. F. Af. Am. F. Eur. Am. M. Af. Am. M.
  estimate LCI UCI estimate LCI UCI estimate LCI UCI estimate LCI UCI
"Normal" Subpopulation
   Proportion (%) 94.0 (93.5; 94.3) 90.7 (90.5; 91.0) 93.2 (92.7; 93.6) 90.6 (90.5; 90.8)
   Mean (g) 3380 (3378; 3382) 3169 (3168; 3170) 3509 (3507; 3512) 3288 (3287; 3289)
   Standard Deviation (g) 455 (453; 457) 455 (454; 457) 474 (472; 476) 472 (471; 473)
   LBW Rate (%) 2.8 (2.7; 2.9) 7.0 (6.9; 7.0) 1.8 (1.7; 1.9) 4.8 (4.7; 4.9)
   Death Rate # 2.3 (2.1; 2.6) 4.4 (4.2; 4.5) 2.9 (2.7; 3.2) 5.2 (5.0; 5.4)
   Percent of Total DR (%) 63.1 (58.2; 67.8) 54.7 (53.5; 56.1) 60.5 (55.6; 65.0) 49.0 (47.5; 50.5)
"Compromised" Subpopulation
   Proportion (%) 6.0 (5.7; 6.5) 9.3 (9.0; 9.5) 6.8 (6.4; 7.3) 9.4 (9.2; 9.5)
   Mean (g) 2678 (2630; 2730) 2039 (1995; 2072) 2739 (2684; 2785) 2034 (1995; 2072)
   Standard Deviation (g) 1098 (1067; 1126) 1303 (1289; 1320) 1098 (1076; 1121) 1336 (1323; 1350)
   LBW Rate (%) 42.3 (40.4; 43.8) 58.5 (57.7; 59.2) 40.4 (38.7; 42.4) 58.3 (57.5; 59.1)
   Death Rate # 21.2 (18.3; 24.9) 35.5 (33.7; 37.1) 26.3 (23.0; 30.0) 52.4 (50.3; 55.0)
   Percent of Total DR (%) 36.9 (32.2; 41.8) 45.2 (43.9; 46.5) 39.5 (35.0; 44.4) 51.0 (49.5; 52.5)
Total Population
   LBW Rate (%) 5.2 (5.1; 5.3) 11.8 (11.7; 11.9) 4.5 (4.4; 4.6) 9.8 (9.8; 9.9)
   Death Rate # 3.5 (3.2; 3.7) 7.3 (7.1; 7.4) 4.5 (4.3; 4.8) 9.6 (9.4; 9.9)
  1. Eur. = European; Af. = African; Am. = American; F. = females; M. = males
  2. LCI = lower 95% confidence interval; UCI = upper 95% confidence interval; LBW = low birth weight (i.e. <2500 grams); DR = death rate
  3. #: death per 1000 births