TABLE 3
Initial Properties of Whiplash Patients Based on Stratification
Participants in Primary Studies Responders to Questionnaire-study at 12-14 y Follow-up Risk Strata n Sex Female/Male Ratio Age at Injury (Mean±SD) Initial Marital Status Married/Single/Other Education Level at Injury n Sex Female/Male Ratio Age (Mean±SD) Marital status Married/Single/Other Education White Collar 1 105 0.48 (0.38, 0.58) 35.86±11.17 0.74/0.18/0.08 (0.64, 0.81) (0.11, 0.29) (0.03, 0.18) 0.57/0.43 (0.46, 0.66) (0.33, 0.54) 49 0.49 (0.34, 0.64) 34.63±10.25 0.71/0.22/0.07 (0.56, 0.82) (0.11, 0.41) (0.01, 0.32) 0.52/0.48 (0.37, 0.67) (0.32, 0.64) 2 281 0.59 (0.51, 0.63) 34.65±11.17 0.73/0.18/0.10 (0.67, 0.77) (0.14, 0.23) (0.06, 0.14) 0.52/0.48 (0.46, 0.58) (0.42, 0.54) 103 0.64 (0.54, 0.73) 34.14±11.22 0.70/0.19/0.11 (0.60, 0.77) (0.12, 0.30) (0.06, 0.22) 0.46/0.54 (0.36, 0.56) (0.44, 0.64) 3 138 0.62 (0.52, 0.69) 35.12±11.92 0.74/0.17/0.09 (0.66, 0.81) (0.11, 0.26) (0.05, 0.17) 0.60/0.40 (0.51, 0.68) (0.31, 0.49) 57 0.59 (0.45, 0.71) 37.31±11.66 0.78/0.17/0.05 (0.65, 0.86) (0.09, 0.33) (0.01, 0.26) 0.56/0.44 (0.42, 0.69) (0.30, 0.58) 4 120 0.68 (0.59, 0.76) 34.10±10.54 0.60/0.24/0.16 (0.51, 0.69) (0.17, 0.34) (0.10, 0.25) 0.51/0.49 (0.42, 0.61) (0.39, 0.58) 38 0.74 (0.57, 0.85) 34.62±10.79 0.54/0.27/0.19 (0.37, 0.70) (0.14, 0.48) (0.08, 0.41) 0.46/0.54 (0.29, 0.64) (0.37, 0.70) 5 75 0.65 (0.53, 0.75) 37.69±12.31 0.59/0.28/0.13 (0.47, 0.69) (0.18, 0.41) (0.07, 0.27) 0.54/0.46 (0.42, 0.66) (0.34, 0.58) 23 0.78 (0.56, 0.90) 37.69±10.98 0.70/0.26/0.04 (0.47, 0.85) (0.10, 0.55) (0.00, 0.78) 0.43/0.57 (0.23, 0.67) (0.34, 0.76) 6 98 0.76 (0.66, 0.83) 32.95±10.76 0.72/0.18/0.10 (0.62, 0.80) (0.11, 0.29) (0.05, 0.20) 0.70/0.30 (0.60, 0.78) (0.21, 0.41) 36 0.81 (0.64, 0.90) 33.67±10.10 0.78/0.17/0.06 (0.61, 0.88) (0.06, 0.40) (0.01, 0.42) 0.69/0.31 (0.51, 0.82) (0.17, 0.52) 7 62 0.66 (0.53, 0.77) 36.50±11.75 0.75/0.19/0.06 (0.63, 0.84) (0.10, 0.34) (0.02, 0.24) 0.70/0.30 (0.57, 0.80) (0.19, 0.45) 15 0.53 (0.26, 0.78) 38.03±13.00 0.73/0.13/0.13 (0.45, 0.89) (0.02, 0.66) (0.02, 0.66) 0.73/0.27 (0.45, 0.89) (0.08, 0.64) Total 881 0.62 (0.59, 0.65) 34.99±11.33 0.70/0.19/0.10 (0.66, 0.73) (0.17, 0.22) (0.08, 0.12) 0.54/0.46 (0.50, 0.57) (0.42, 0.49) 322 0.64 (0.58, 0.69) 35.22±11.06 0.71/0.19/0.09(0.66, 0.75) (0.15, 0.24) (0.06, 0.14) 0.50/0.50 (0.45, 0.56) (0.44, 0.55)