Correlates | 30-day SADa | Lifetime risk of SADb | 12-month SAD among lifetime casesc | 30-day SAD among 12-month casesc | ||||
---|---|---|---|---|---|---|---|---|
OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | |
Age-cohort | ||||||||
 18–29 | 2.0* | (1.2–3.1) | 3.9* | (2.7–5.5) |  |  |  |  |
 30–44 | 2.1* | (1.3–3.3) | 2.9* | (2.1–4.0) |  |  |  |  |
 45–59 | 1.9* | (1.2–3.1) | 2.1* | (1.5–3.1) |  |  |  |  |
 60+ | 1.0 |  | 1.0 |  |  |  |  |  |
Age-cohort differenced | χ2 3 = 9.8*, P = 0.021 | χ2 3 = 70.3*, P < 0.001 |  |  | ||||
Age of onset | ||||||||
 Early |  |  |  |  | 1.0 | (0.6–2.0) | 0.5* | (0.3–1.0) |
 Early-average |  |  |  |  | 0.8 | (0.5–1.4) | 0.6 | (0.3–1.1) |
 Late-average |  |  |  |  | 0.9 | (0.5–1.5) | 1.0 | (0.6–1.7) |
 Late |  |  |  |  | 1.0 |  | 1.0 |  |
Age of onset differenced |  |  |  |  | χ2 3 = 1.0, P = 0.810 | χ2 3 = 6.4, P = 0.092 | ||
Time since onset (continuous) |  |  |  |  | 0.99 | (0.98–1.01) | 1.02* | (1.00–1.03) |
 |  |  |  |  | χ2 1 = 1.0, P = 0.309 | χ2 1 = 5.8*, P = 0.016 | ||
Gender | ||||||||
 Female | 2.0* | (1.6–2.6) | 1.5* | (1.3–1.8) | 1.6* | (1.1–2.4) | 1.6* | (1.0–2.3) |
 Male | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
Gender differenced | χ2 1 = 29.5*, P < 0.001 | χ2 1 = 19.6*, P < 0.001 | χ2 1 = 4.7*, P = 0.030 | χ2 1 = 4.5*, P = 0.034 | ||||
Employment status | ||||||||
 Student | 1.8 | (1.0–3.3) | 1.4 | (0.9–2.1) | 0.6 | (0.3–1.5) | – | – |
 Homemaker | 1.3 | (1.0–1.8) | 1.1 | (0.8–1.3) | 1.4 | (0.8–2.3) | 1.8* | (1.1–3.1) |
 Retired | 0.4* | (0.2–0.9) | 0.7 | (0.5–1.0) | 1.0 | (0.4–2.7) | 0.4 | (0.1–1.3) |
 Other | 1.4 | (1.0–2.0) | 1.3 | (1.0–1.6) | 1.0 | (0.6–1.8) | 1.2 | (0.7–2.1) |
 Employed | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
Employment status differenced | χ2 4 = 15.8*, P = 0.003 | χ2 4 = 7.8, P = 0.101 | χ2 4 = 3.9, P = 0.414 | χ2 4 = 18.7*, P = 0.001 | ||||
Marital status | ||||||||
 Never married | 1.0 | (0.7–1.3) | 1.3* | (1.0–1.7) | 1.0 | (0.6–1.6) | 0.8 | (0.5–1.2) |
 Divorced/separated/widowed | 1.1 | (0.8–1.6) | 1.3* | (1.0–1.7) | 1.0 | (0.6–1.7) | 0.8 | (0.4–1.4) |
 Currently married | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
Marital status differenced | χ2 2 = 0.4, P = 0.815 | χ2 2 = 8.4*, P = 0.015 | χ2 2 = 0.0, P = 0.996 | χ2 2 = 1.5, P = 0.484 | ||||
Education level | ||||||||
 No education | 1.4 | (0.7–2.9) | 0.7 | (0.4–1.2) | – | – | 2.1 | (0.6–7.4) |
 Some primary | 1.7* | (1.1–2.8) | 0.9 | (0.7–1.3) | 3.8* | (2.0–7.3) | 2.2 | (0.9–5.3) |
 Primary finished | 1.6 | (1.0–2.6) | 1.1 | (0.8–1.6) | 2.4* | (1.1–5.1) | 1.3 | (0.5–3.3) |
 Some secondary | 1.4 | (0.9–2.2) | 1.2 | (0.9–1.6) | 1.3 | (0.7–2.6) | 1.2 | (0.6–2.4) |
 Secondary finished | 1.0 | (0.6–1.6) | 0.9 | (0.7–1.2) | 1.1 | (0.6–2.0) | 1.4 | (0.7–2.7) |
 Some college | 1.0 | (0.6–1.7) | 1.1 | (0.8–1.5) | 1.5 | (0.6–3.8) | 0.7 | (0.3–1.6) |
 College finished | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
Education level differenced | χ2 3 = 12.9*, P = 0.044 | χ2 3 = 10.6, P = 0.102 | χ2 3 = 37.1*, P < 0.001 | χ2 3 = 9.3, P = 0.157 | ||||
Household income | ||||||||
 Low | 1.2 | (0.8–1.7) | 1.0 | (0.8–1.2) | 0.9 | (0.5–1.6) | 1.6 | (0.8–3.1) |
 Low-average | 1.2 | (0.8–1.8) | 1.0 | (0.8–1.3) | 1.2 | (0.7–2.0) | 1.6 | (0.9–2.8) |
 High-average | 1.2 | (0.9–1.6) | 0.8 | (0.7–1.1) | 1.3 | (0.7–2.3) | 2.0* | (1.2–3.5) |
 High | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
Household income differenced | χ2 3 = 1.7, P = 0.649 | χ2 3 = 3.1, P = 0.384 | χ2 3 = 2.0, P = 0.580 | χ2 3 = 6.7, P = 0.082 | ||||
N e | 28,927 | 1,206,689 | 834 | 601 |