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) |