Table 2 Descriptive statistics of obese and non-obese subjects (n = 94314).
From: Obesity prevalence in a cohort of women in early pregnancy from a neighbourhood perspective
Non-obese | Obese | Chi-square statistics | |
|---|---|---|---|
Age | |||
20-34 yrs | 90.4% | 89,6% | Chi2 = 3,412 |
> = 35 yrs | 9,6% | 10,4% | df = 1, |
P-value = 0,065 | |||
Education | |||
Elementary | 8.1% | 13.6% | Chi2 = 573.217 |
Secondary (2 yrs) | 49.4% | 60.7% | df = 3, |
Secondary (3-4 yrs) | 20.7% | 14.9% | P-value < 0.001 |
University | 21.8% | 10.9% | |
Income | |||
1st quintile (lowest) | 7.2% | 8.9% | Chi2 = 201.241 |
2nd quintile | 9.8% | 12.7% | df = 4, |
3rd quintile | 18.2% | 21.4% | P-value < 0.001 |
4th quintile | 34.4% | 36.2% | |
5th quintile | 30.4% | 20.8% | |
Smoking habits | |||
Non smoker | 86.4% | 80.1% | Chi2 = 159.063 |
<10 cig a day | 9.4% | 13.0% | df = 2, |
>10 cig a day | 4.2% | 7.0% | P-value < 0.001 |