Table 1

Characteristics of the study population
Characteristics
 Extra-domestic work and additional domestic workload (A) n = 196
 Exclusively intra-domestic work (B) n = 341

Frequency
 %
 Frequency
 %
I. Socio-demographic characteristics
Age (years)*
14–19
 17
 8.7
 52
 15.3
20–34
 169
 86.2
 279
 81.8
≥ 35
 10
 5.1
 10
 2.9
Marital status*
Married
 107
 54.6
 276
 81.0
Free union
 60
 30.6
 57
 16.7
Single, divorced
 29
 14.8
 8
 2.3

n = 196
 n = 340
Education (years)*
≤ 3
 2
 15.3
 6
 1.8
4–6
 19
 41.6
 46
 13.5
7–9
 59
 34.9
 142
 41.8
10–12
 77
 7.9
 119
 35.0
> 12
 39
 19.9
 27
 7.9
Socio-economic level*
High
 60
 30.6
 86
 25.2
Medium
 91
 46.4
 135
 39.6
Low
 45
 22.9
 120
 35.2
Goods
House
 99
 50.5
 162
 47.5
Car*
 52
 26.5
 47
 13.8
Washing machine
 128
 65.3
 213
 62.5
Stove
 189
 96.4
 330
 96.8
Refrigerator*
 165
 84.2
 260
 76.3
Computer*
 39
 19.9
 37
 10.8
Television
 191
 97.4
 329
 96.5
Reproductive and prenatal care characteristics Parity*
1
 93
 47.4
 124
 36.3
2–3
 92
 46.9
 189
 55.4
> 3
 11
 5.6
 28
 8.2
Failure to attend prenatal care*
 3
 1.5
 30
 8.8
First prenatal care visit
 n = 193
 n = 311
First trimester*
 138
 71.5
 195
 62.7
Second trimester
 47
 24.3
 74
 23.8
Third trimester*
 8
 4.1
 42
 13.5

P < 0.05

Torres-Arreola et al. BMC Public Health 2007 7:25   doi:10.1186/1471-2458-7-25