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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Transfusion. 2013 May 27;54(2):340–352. doi: 10.1111/trf.12257

Table 5.

Clinical characteristics predictive of Post-TNCC >1.18×109 in univariate and multivariate analysis.

Characteristics* Univariate Multivariate

Odds Ratio (95% CI), p-value
Infant gestational age (weeks)
 Overall Effect p<0.0001 p<0.0001
 34–37 vs. 38–40 0.63 (0.51–0.79), p<0.0001 0.62 (0.49–0.79), p=0.0001
 34–37 vs. 41–42 0.49 (0.38–0.64), p<0.0001 0.51 (0.38–0.68), p<0.0001
 38–40 vs. 41–42 0.78 (0.66–0.93), p=0.0060 0.82 (0.67–0.99), p=0.0409
Infant race/ethnicity*
 Overall Effect p<0.0001 p<0.0001
 Caucasian compared to African American 1.44 (1.25–1.66), p<0.0001 1.54 (1.29–1.84), p<0.0001
 Caucasian compared to More than One Race 1.24 (0.87–1.77), p=0.2288 1.27 (1.04–1.55), p=0.0193
 Caucasian compared to Hispanic 1.22 (1.03–1.43), p=0.0213 1.14 (0.94–1.37), p=0.1752
 Asian compared to African American 1.19 (0.92–1.56) p=0.1914 1.59 (1.05–2.40), p=0.0275
Infant birth weight (g)
 >3500 1.85 (1.65–2.07), p<0.0001 1.37 (1.21–1.56), p<0.0001
 ≤3500 1.00 1.00
Maternal age (years)
 >20 1.31 (1.00–1.71), p=0.0480 NS
 ≤20 1.00
Collection volume (ml)+
 ≤80
  Vaginal 1.41 (1.05–1.90), p=0.0228 1.41 (1.05–1.91), p=0.0242
  Caesarian 1.00 1.00
 >80
  Vaginal 1.18 (1.03–1.35), p=0.0170 1.25 (1.08–1.44), p=0.0023
  Caesarian 1.00 1.00
 Vaginal
  ≤80 0.15 (0.13–0.18), p<0.0001 0.15 (0.12–0.17), p<0.0001
  >80 1.00 1.00
 Caesarian
  ≤80 0.12 (0.09–0.16), p<0.0001 0.13 (0.10–0.17), p<0.0001
  >80 1.00 1.00
Processing time (hours)
 Overall Effect p<0.0001 p=0.0001
 <10 hours vs. 10–23 hours 1.18 (1.05–1.32), p=0.0061 1.08 (0.94–1.23), p=0.2674
 <10 hours vs. ≥24 hours 1.60 (1.34–1.91), p<0.0001 1.54 (1.26–1.88), p<0.0001
 10–23 hours vs. ≥24 hours 1.36 (1.14–1.61), p=0.0006 1.42 (1.18–1.73), p=0.0003
Viability (%)
 98–100 1.09 (0.97–1.22), p=0.1649 NS
 90–97 1.00

CI: Confidence Interval; NS: Not significant;

*

Infant gender was not significantly associated with TNCC content and therefore was not included in this table.

*

All races/ethnicities were compared against each other in both univariate and multivariate analysis. Only the relationships that are statistically significant are shown in the table.