Technical Report - AUTO21

Table-3.6.2: Child’s restraint status and type of restraintCategory Frequency PercentRestrained ? 13255Yes 11919 89.9%No 710 5.4%Can’t see 626 4.7%Types of Restraint 11745Rear-facing infant seat 631 5.4%Forward-facing infant seat 559 4.8%Child seat 2164 18.4%Booster seat 1661 14.1%Seat belt 6730 57.3%3.7 Weighted Estimates of Correct Use for the Roadside DataThe provincial as well as national weighted estimates of the correct use basedthe criteria in Table D are reported in Tables 3.8.1 , 3.8.12. The weightedanalysis is carried out as described in earlier sections. The weighted estimates ofthe correct use rate for the provinces are very close to the un-weighted (unlikethe parking lot data) except perhaps for New Brunswick for which the weightedestimate of correct use rate is about 6% lower than its un-weighted version. Also,for the national estimates, there is 2% difference between weighted and unweightedversions of the correct use rates. However, both estimates are withinthe 95% confidence intervals in all cases.Table-3.7.1: National weighted estimates of correct use for the road sidesample .Proportion Estimate StandardError95% ConfidenceIntervalLower UpperNational 58.4% 60.52% 0.62% 59.30% 61.74%32