Table 1 Descriptive statistics of the study participants from ENSANUT surveys 2006 and 2012
From: PM2.5 exposure as a risk factor for type 2 diabetes mellitus in the Mexico City metropolitan area
2 0 0 6 | 2 0 1 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
With Diabetes | Without Diabetes | p value | With Diabetes | Without Diabetes | p value | |||||
n | % (CI 95%) | n | % (CI 95%) | n | % (CI 95%) | n | % (CI 95%) | |||
Sample size | 193 | 8.3 | 2082 | 91.7 | 284 | 11.3 | 2013 | 88.7 | ||
Weighted sample size | 1,045,037 | (6.9–9.8) | 11,610,723 | (90.1–93.1) | 1,547,262 | (10.3–12.6) | 12,184,640 | (87.3–89.8) | ||
Age in years(mean, SE) | 57.9 | 1.5 | 40.7 | 0.5 | 0.00 | 57.7 | 1.2 | 40.9 | 0.5 | 0.00 |
Sex, men (n, %) | 515,155 | 49.3 | 5,169,931 | 44.5 | 0.30 | 719,601 | 46.5 | 5,578,789 | 45.8 | 0.85 |
Socioeconomic status (mean, SE) | 0.0 | 0.1 | −0.2 | 0.1 | 0.05 | 0.0 | 0.1 | −0.1 | 0.1 | 0.05 |
Body Mass Index (n, %) | ||||||||||
Normal (< 24.9) | 167,535 | 21.3 | 2,153,242 | 28.4 | 273,960 | 24.8 | 2,283,617 | 28.8 | ||
Overweight (25.0–29.9) | 329,019 | 41.7 | 3,147,836 | 41.5 | 444,872 | 40.2 | 3,247,347 | 40.9 | ||
Obesity (> 30.0) | 291,422 | 37.0 | 2,287,117 | 30.1 | 0.14 | 388,005 | 35.0 | 2,408,519 | 30.3 | 0.44 |
Smoking status (n, %) | ||||||||||
Never | 462,300 | 44.2 | 5,208,715 | 44.9 | 783,924 | 50.7 | 4,384,240 | 36.0 | ||
Former | 122,893 | 11.8 | 1,872,923 | 16.1 | 202,178 | 13.0 | 2,017,408 | 16.6 | ||
Current | 459,844 | 44.0 | 4,529,085 | 39.0 | 0.26 | 561,160 | 36.3 | 5,777,546 | 47.4 | 0.00 |
PM2.5 previous annual average (mean, SE) | ||||||||||
Monitor | 26.8 | 0.3 | 27.2 | 0.4 | 0.15 | 24.4 | 0.5 | 24.4 | 0.4 | 0.79 |
AOD | 26.2 | 0.3 | 26.1 | 0.2 | 0.31 | 25.0 | 0.2 | 24.8 | 0.2 | 0.02 |