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. 2017 Jan 12;12(1):e0169623. doi: 10.1371/journal.pone.0169623

Table 2. Incidence rate for anxiety or depression between the tSCI group and other health conditions group.

Other health conditions group (N = 3,556) tSCI group (N = 3,556) IRR (95% CI) p-value Adjusted** HR (95% CI) p-value
Anxiety/depression PY Rate* Anxiety/depression PY Rate*
Total 240 10,300.40 233.00 313 10,105.28 309.74 1.33 (1.12–1.57) 0.0009 1.29 (1.09–1.53) .0030
Level of SCI
ISS <16 292 9,709.09 300.75
ISS ≥16 21 396.20 530.04
Age
18–35 27 2,733.98 98.76 49 2,699.61 181.51 1.84 (1.15–2.94) 0.0111 1.00 (ref.)
36–50 54 2,694.04 200.44 75 2,623.55 285.87 1.43 (1.01–2.02) 0.0467 1.74 (1.31–2.31) .0001
51–65 68 2,155.77 315.43 70 2,156.93 324.54 1.03 (0.74–1.44) 0.8673 2.01 (1.51–2.67) < .0001
66–80 73 2,142.83 340.67 92 2,086.51 440.93 1.29 (0.95–1.76) 0.0998 2.14 (1.60–2.87) < .0001
>80 18 573.78 313.71 27 538.70 501.21 1.60 (0.88–2.90) 0.1236 2.10 (1.42–3.10) .0002
Sex
Male 76 4,833.55 157.23 121 4,729.31 255.85 1.63 (1.22–2.17) 0.0009 1.00 (ref.)
Female 164 5,466.85 299.99 192 5,375.97 357.15 1.19 (0.97–1.47) 0.1010 1.48 (1.24–1.76) < .0001
Economic status
<$640 138 4,884.50 282.53 184 5,044.61 364.75 1.29 (1.04–1.61) 0.0233 1.93 (1.32–2.81) .0007
$640–1,280 86 3,945.46 217.97 113 3,919.38 288.31 1.32 (0.99–1.75) 0.0507 1.70 (1.16–2.48) .0062
>$1,280 16 1,470.45 108.81 16 1,141.30 140.19 1.29 (0.64–2.58) 0.4736 1.00 (ref.)
Comorbidity
HTN 31 970.18 319.53 36 956.63 376.32 1.18 (0.73–1.90) 0.5043 0.78 (0.58–1.05) .1058
DM 7 264.47 264.69 11 251.37 437.60 1.65 (0.64–4.26) 0.2984 0.74 (0.44–1.22) .2364
CAD 6 144.66 414.75 9 136.76 658.09 1.59 (0.56–4.46) 0.3811 1.48 (0.86–2.55) .1625
CCI score
0 173 8,703.11 198.78 225 8,137.91 276.48 1.39 (1.14–1.70) 0.0011 1.00 (ref.)
1 41 1,041.73 393.57 54 1,152.81 468.42 1.19 (0.79–1.79) 0.4006 1.58 (1.25–2.01) .0002
≥2 26 555.56 468.00 34 814.56 417.40 0.89 (0.54–1.49) 0.6605 1.53 (1.14–2.06) .0048

PY, person-year; IRR, incidence rate ratio; CI, confidence interval; HR, hazard ratio; ref., reference; HTN, hypertension; DM, diabetes mellitus; CAD, coronary artery disease; CCI, Charlson Comorbidity Index.

*rate: per 10,000 person-years.

**The hazard ratio were adjusted by age, sex, economic status, comorbidities, and CCI score.