Table 2.
Prevalence and prevalence ratios of lifetime and past-year suicidal ideation, plan and attempt, by year of interview. Mexican National Comorbidity Survey (2001–2002) and Mexican Adolescent Mental Health Survey follow-up (2013)
| Year | |||||||
|---|---|---|---|---|---|---|---|
| 2001–2002 (n = 223) | 2013 (n = 1071) | ||||||
| n | % (s.e.) | n | % (s.e.) | p-value* | PR† | 95% CI | |
| (a) Lifetime | |||||||
| Ideation | 16 | 6.0 (1.71) | 165 | 15.9 (1.80) | <0.001 | 3.1 | (1.7–5.8) |
| Plan | 9 | 3.5 (1.37) | 57 | 5.4 (0.78) | 0.203 | 1.7 | (0.7–3.7) |
| Attempt | 8 | 3.5 (1.41) | 72 | 6.7 (0.85) | 0.056 | 2.2 | (1.0–4.9) |
| (b) Past-year | |||||||
| Ideation | 7 | 2.5 (1.32) | 48 | 4.0 (0.64) | 0.274 | 1.7 | (0.6–5.0) |
| Plan | 3 | 1.4 (0.85) | 18 | 1.7 (0.42) | 0.755 | 1.3 | (0.4–3.8) |
| Attempt | 0 | 0 (0) | 18 | 1.5 (0.43) | ‡ | ‡ | ‡ |
s.e., standard error; PR, prevalence ratio; CI, confidence interval.
Unweighted n’s, weighted percents, design-based SEs and CIs.
*
p-values from design-based χ2 tests with one degree of freedom (2001 v. 2013 proportion comparison).
†
PR adjusted by sex, age (two categories), education category, marital status and occupation with SUDAAN's PROC LOGISTIC.
‡
Could not be computed due to zero cell.