Table 2.
Rates of mental health physician claims for injured and non-injured cohorts, with rate ratios and 95% confidence intervals, by time periods
| Number of Mental Health Physician Claims | ||||||||
| Time Period |
Injured (N = 21,032) |
Non-Injured (N = 21,032) |
Unadjusted Rate Ratio | 95% Confidence Interval | Adjusted Rate Ratio * | 95% Confidence Interval | ||
| Claims |
Rate /10 PYs |
Claims |
Rate /10 PYs |
|||||
| Year prior | 20,642 | 9.81 | 5,899 | 2.80 | 3.50 | 3.42–3.78 | na | na |
| Year 1 | 23,185 | 11.25 | 6,044 | 2.96 | 3.86 | 3.59–4.16 | 2.08 | 1.95–2.21 |
| Year 2 | 18,913 | 9.46 | 6,274 | 3.19 | 2.97 | 2.75–3.21 | 1.62 | 1.51–1.73 |
| Year 3 | 17,143 | 8.81 | 6,217 | 3.23 | 2.74 | 2.53–2.96 | 1.55 | 1.45–1.66 |
| Year 4 | 16,343 | 8.58 | 6,598 | 3.49 | 2.47 | 2.29–2.67 | 1.46 | 1.36–1.57 |
| Year 5 | 14,903 | 7.97 | 6,267 | 3.36 | 2.38 | 2.20–2.57 | 1.48 | 1.38–1.59 |
| Year 6 | 14,481 | 7.88 | 6,480 | 3.53 | 2.24 | 2.07–2.42 | 1.47 | 1.37–1.58 |
| Year 7 | 14,613 | 8.10 | 6,552 | 3.62 | 2.24 | 2.07–2.42 | 1.49 | 1.39–1.61 |
| Year 8 | 15,074 | 8.51 | 7,173 | 4.02 | 2.12 | 1.96–2.29 | 1.36 | 1.27–1.47 |
| Year 9 | 14,961 | 8.60 | 7,167 | 4.07 | 2.12 | 1.96–2.28 | 1.34 | 1.24–1.44 |
| Year 10 | 13,849 | 8.68 | 6,887 | 4.25 | 2.02 | 1.87–2.19 | 1.29 | 1.19–1.39 |
| Total | 163,465 | 8.82 | 65,659 | 3.55 | 2.65 | 2.53–2.77 | 1.53 | 1.47–1.59 |
* Adjusted for age, gender, place of residence, and comorbidities in 12 months prior to injury date (including CCI, cumulative LOS, number of physician claims, pre-existing psychiatric condition, pre-existing musculoskeletal condition and previous injuries)