Table 4 Socio-economic characteristics of 507 rural schoolchildren aged 6–10 years from 12 Mexican communities, 1997–2000.

Mother

   Unemployed (%)

65 (231)^e

59 (89)^e

0.59^d

   Employed (%)

35 (125)^e

41 (62)^e

0.44^d

   Primary education in years

5 (3.7)^a (18)^e

4.5 (2.8)^a (7)^e

0.79^b

Father

   Unemployed (%)

9 (32)^e

10 (15)^e

0.88^d

   Employed (%)

91(324)^e

90 (136)^e

0.99^d

   Primary education in years

4.0 (3.5)^a (14)^e

3.8 (3.2)^a (6)^e

0.70^b

Household conditions

Walls

   Block/cement (%)

67 (239)^e

31 (47)^e

<0.0001^d

   Adobe (%)

17 (61)^e

26 (39)^e

   Bamboo/mud (%)

12 (43)^e

24 (36)^e

   Board laminate/wood (%)

4 (14)^e

19 (29)^e

Roof

   Concrete (%)

80 (285)^e

13 (20)^e

<0.0001^d

   Metal laminate/wood (%)

16 (57)^e

83 (296)^e

   Board laminate/wood (%)

4 (14)^e

4 (14)^e

Floor

   Bare-earth (%)

37 (132)^e

47 (71)^e

0.20^d

   Cement (%)

63 (224)^e

53 (80)^e

0.32^d

Crowding index^c

4 (14)^e

6 (9)^e

0.34^b

Sanitation facilities

   Defecation in Open Area (%)

8 (29)^e

28 (42)^e

<0.0001^d

   Pit (%)

68 (242)^e

63 (95)^e

   Latrine (%)

24 (85)^e

9 (14)^e

Drinking water

   Treated water (%)

47 (167)^e

70 (106)^e

<0.01^d

   Untreated water (%)

53 (189)^e

30 (45)^e

<0.01^d

Family income

4 times minimum daily wage

1 minimum daily wage

<0.001^b