Table 3 Relative risk of sitting positing, unexplained versus explained deaths
RRp Value
Unexplained death group, n = 409*
    Prematurity, n = 532/53 (3.8%)1.68NS
    Term birth, n = 3568/356 (2.2%)
    <1 month, n = 495/49 (10.2%)7.35p<0.001
    >1 month, n = 3605/360 (1.4%)
Explained death group, n = 99†
    Prematurity, n = 211/21 (4.8%)0.62NS
    Term birth, n = 786/78 (7.7%)
    <1 month, n = 151/15 (6.7%)0.93NS
    >1 month, n = 846/84 (7.1%)
  • *Seat group, n = 10; seat group, n = 7.

  • RR, relative risk.