Table 2.
Effects of locality size on Mexican adolescents' risk behaviors.
| Variable | Ever smoked | Smokes currently | Drinks alcohol | Sexual initiationc | Use of condomd |
|---|---|---|---|---|---|
| Age (continuos variable) | 1.15*** | 1.28*** | 1.21*** | 1.65*** | 0.97 |
| (1.13-1.17) | (1.24-1.32) | (1.18-1.24) | (1.61-1.69) | (0.92-1.02) | |
| Gender (0 = Female; 1 = Male) | |||||
| Single | 3.35*** | 8.04*** | 2.63*** | 6.21*** | |
| (3.08-3.65) | (6.69-9.65) | (2.37-2.92) | 0.87*** | (5.02-7.68) | |
| Married | 6.90*** | 16.36*** | 8.00*** | (0.79-0.95) | 2.35*** |
| (5.69-8.36) | (11.5-23.1) | (6.46-9.90) | (1.84-3.00) | ||
| Marital status (0 = Single; 1 = Married) | |||||
| Female | 0.82*** | 0.54*** | 0.51*** | 0.54*** | |
| (0.71-0.94) | (0.39-0.75) | (0.43-0.60) | N/A | (0.43-0.69) | |
| Male | 1.69*** | 1.11 | 1.54*** | 0.20*** | |
| (1.43-2.00) | (0.92-1.33 | (1.30-1.83) | (0.16-0.26) | ||
| Locality sizeb according to SES: | |||||
| 1st Quartile-SES (highest SES) | |||||
| Small semi-urban locality | 0.41*** | 0.72* | 0.32*** | 1.07 | 0.59* |
| (0.29-0.58) | (0.51-1.04) | (0.22-0.45) | (0.77-1.49) | (0.34-1.01) | |
| Large semi-urban locality | 0.45*** | 0.77 | 0.32*** | 1.42** | 0.45*** |
| (0.31-0.65) | (0.51-1.17) | (0.22-0.46) | (1.01-1.98) | (0.25-0.81) | |
| Urban locality | 0.34*** | 0.58*** | 0.26*** | 1.14 | 0.74 |
| (0.24-0.49) | (0.39-0.86) | (0.18-0.37) | (0.83-1.57) | (0.44-1.24) | |
| 2nd Quartile-SES | |||||
| Small semi-urban locality | 0.43*** | 1.05 | 0.43*** | 1.48** | 0.79 |
| (0.31-0.58) | (0.74-1.49) | (0.31-0.60) | (1.09-2.01) | (0.44-1.42) | |
| Large semi-urban locality | 0.37*** | 0.98 | 0.34*** | 1.40** | 0.82 |
| (0.26-0.53) | (0.67-1.45) | (0.24-0.49) | (1.00-1.94) | (0.44-1.54) | |
| Urban locality | 0.33*** | 0.82 | 0.34*** | 1.52** | 1.11 |
| (0.23-0.47) | (0.53-1.26) | (0.24-0.49) | (1.07-2.14) | (0.62-1.98) | |
| 3rd Quartile-SES | |||||
| Small semi-urban locality | 0.38*** | 0.86 | 0.37*** | 0.94 | 0.72 |
| (0.28-0.51) | (0.58-1.26) | (0.26-0.54) | (0.70-1.26) | (0.46-1.12) | |
| Large semi-urban locality | 0.37*** | 0.73 | 0.38*** | 0.85 | 0.70 |
| (0.26-0.53) | (0.47-1.12) | (0.26-0.55) | (0.64-1.13) | (0.45-1.08) | |
| Urban locality | 0.33*** | 0.70 | 0.25*** | 1.22 | 1.00 |
| (0.22-0.50) | (0.46-1.07) | (0.16-0.39) | (0.92-1.63) | (0.61-1.66) | |
| 4th Quartile-SES (low SES) | |||||
| Small semi-urban locality | 0.41*** | 0.66** | 0.44*** | 0.82 | 1.44* |
| (0.28-0.59) | (0.45-0.98) | (0.30-0.65) | (0.60-1.12) | (0.99-2.11) | |
| Large semi-urban locality | 0.37*** | 0.71 | 0.39*** | 0.69** | 1.88** |
| (0.25-0.55) | (0.47-1.07) | (0.26-0.58) | (0.51-0.94) | (1.15-3.06) | |
| Urban locality | 0.57** | 0.78 | 0.44*** | 0.95 | 1.76** |
| (0.36-0.90) | (0.54-1.13) | (0.27-0.71) | (0.69-1.33) | (1.06-2.90) | |
| n = 17,974 | n = 17,974 | n = 17,974 | n = 17,974 | n = 4,641 | |
Results are odds ratios (IC 95%).
*p ≤ 0.1 **p ≤ 0.05 ***p ≤ 0.01.
a = Analyses carried adjusting by primary sample unit. Multivariate model also includes educational level and survey year (2001 vs 2003). Two interaction terms included: marital status*gender and locality size*socioeconomic status (SES). OR for exposure categories in these variables are calculated with lincom command in Stata.
b = Rural locality of: ≤ 2,500 inhabitants is the reference category comparing to small semi-urban locality: > 2,500 and ≤ 15,000; large semi-urban locality: > 15,000 and ≤ 100,000; and urban locality: > 100,000 inhabitants.
c = Model without marital status*gender interaction term; result is OR for variable gender only.
d = Among those who have initiated sexual activity.