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. 2019 Mar 7;14(3):e0213334. doi: 10.1371/journal.pone.0213334

Table 3. Association of explanatory variables with anxiety symptom severity progression, regression, and cardiovascular event anxiety level 1 = no symptoms (<8), 2 = mild (8–10), 3 = moderate/severe (≥11)a.

Progression Regression CVE
1→2 1→3 2→3 2→1 3→1 3→2 1→CVE 2→CVE 3→CVE
Variables TIR
(95% CI)
TIR
(95% CI)
TIR
(95% CI)
TIR
(95% CI)
TIR
(95% CI)
TIR (95% CI) TIR
(95% CI)
TIR
(95% CI)
TIR
(95% CI)
Age 0.8
(0.7, 1.0)
0.8
(0.5, 1.1)
1.2
(0.9, 1.6)
0.9
(0.8, 1.1)
1.0
(0.7, 1.5)
1.2
(0.9, 1.6)
1.5
(1.2, 1.9)
2.0
(1.2, 3.3)
2.2
(1.1, 4.2)
Female Sex 1.6
(1.1, 2.2)
1.6
(0.9, 3.1)
0.8
(0.4, 1.5)
1.1
(0.8, 1.5)
1.6
(0.8, 3.1)
1.0
(0.5, 1.8)
0.5
(0.3, 0.9)
1.1
(0.5, 1.6)
0.1
(0.02, 0.5)
BMI 1.1
(0.9, 1.4)
1.1
(0.7, 1.6)
0.9
(0.6, 1.3)
0.9
(0.7, 1.1)
0.9
(0.6, 1.3)
1.0
(0.7, 1.4)
1.0
(0.8, 1.3)
0.9
(0.5, 1.5)
1.7
(0.9, 3.5)
Current/
former smoker
0.9
(0.6, 1.1)
1.4
(0.8, 2.4)
1.1
(0.7, 1.8)
0.9
(0.6, 1.2)
1.1
(0.6, 2.1)
1.6
(0.9, 2.7)
1.1
(0.8, 1.6)
1.7
(0.8, 3.8)
0.5
(0.2, 1.3)
Education <10 years 1.1
(0.8, 1.4)
1.4
(0.8, 2.4)
1.0
(0.6, 1.6)
1.0
(0.8, 1.3)
0.8
(0.4, 1.4)
0.7
(0.5, 1.1)
1.2
(0.9, 1.7)
0.5
(0.3, 1.1)
0.9
(0.3, 2.7)
History of diabetes 0.7
(0.5, 1.1)
1.4
(0.7, 2.5)
0.6
(0.3, 1.2)
1.1
(0.8, 1.6)
0.9
(0.4, 2.2)
1.2
(0.6, 2.2)
1.6
(1.1, 2.3)
1.9
(0.8, 4.5)
1.1
(0.3, 4.3)
History of myocardial infarction 1.0
(0.8, 1.3)
0.9
(0.5, 1.4)
1.2
(0.8, 1.9)
1.1
(0.8, 1.4)
0.9
(0.5, 1.6)
0.6
(0.4, 0.9)
1.2
(0.9, 1.6)
1.3
(0.6, 2.6)
4.2
(1.1, 15.8)
Lower physical activity level 1.1
(1.0, 1.3)
1.6
(1.3, 2.1)
1.1
(0.9, 1.4)
1.0
(0.8, 1.1)
0.8
(0.6, 1.1)
0.9
(0.7, 1.1)
1.2
(1.0, 1.4)
1.4
(1.0, 2.0)
1.5
(0.8, 2.7)
Anti-depression meds 2.2
(1.0, 4.7)
1.2
(0.2, 9.0)
1.2
(0.4, 3.4)
0.8
(0.4, 1.7)
0.6
(0.1, 3.0)
0.4
(0.1, 1.4)
0.0
(0.0, 0.0)
0.0
(0.0, 0.0)
16.7
(3.2, 88.1)
Anti-anxiety meds 1.8
(0.8, 4.2)
1.0
(0.1, 7.7)
2.0
(0.7, 5.4)
0.8
(0.3, 2.1)
0.8
(0.1, 7.3)
2.3
(0.7, 7.3)
3.0
(1.1, 8.1)
0.0
(0.0, 0.0)
0.0
(0.0, 0.0)

Anxiety level 1 = no symptoms (<8), 2 = mild (8–10), 3 = moderate/severe (≥11); TIR, Transition Intensities Ratio; 95% CI, 95% Confidence Interval; CVE, cardiovascular event; BMI, body mass index.

aTIR estimates are adjusted for age (< 55 yr, 55–64 yr, and > 64 yr), female sex, body mass index (BMI; <25 kg/m2 normal, 25–29.9kg/m2 overweight, and ≥30 kg/m2 obese), current/former smoker, education <10 years, history of diabetes, history of myocardial infarc tion, lower physical activity (PA) at year one (PA level 1: daily or 5-6x/week, PA level 2: 2-4x/week, PA level 3: 1x/week or 1-3x/month, and PA level 4: seldom or never), and anti-depression/anxiety medication use. TIR is the ratio of transition intensities between the exposed group to the unexposed group and can be interpreted as relative risk (RR).