TABLE 1.

Characteristics of CLHNS women across survey years¹

Survey	1983–1984	1984–1985	1985–1986	1991	1994	1998	2002	2005
n	3055	2442	2211	2218	2166	1938	2072	2004
Age, y	27.1 ± 6.0	28.2 ± 6.07	29.0 ± 6.0	35.7 ± 6.1	38.6 ± 6.1	42.6 ± 6.1	45.8 ± 6.1	48.4 ± 6.0
Weight, kg	46.9 ± 6.9	45.7 ± 7.08	46.6 ± 7.6	52.0 ± 9.5	52.6 ± 10.0	53.7 ± 10.4	55.2 ± 10.8	55.2 ± 10.9
BMI, kg/m2	20.7 ± 2.6	20.2 ± 2.72	20.5 ± 2.9	22.9 ± 3.7	23.2 ± 3.9	23.7 ± 4.1	24.3 ± 4.3	24.4 ± 4.4
BMI > 25	0.07 ± 0.25	0.06 ± 0.23	0.07 ± 0.26	0.26 ± 0.44	0.30 ± 0.46	0.35 ± 0.48	0.42 ± 0.49	0.43 ± 0.49
Assets score	2.50 ± 1.93	2.53 ± 1.87	2.67 ± 1.98	3.92 ± 2.36	3.93 ± 2.17	4.66 ± 2.17	5.00 ± 2.06	5.23 ± 1.95
Household size, n	5.69 ± 2.82	5.74 ± 2.78	5.72 ± 2.80	6.83 ± 2.34	7.06 ± 2.47	6.96 ± 2.54	6.97 ± 2.74	6.78 ± 2.72
Income, pesos/mo	2.60 ± 2.80	1.98 ± 2.18	2.19 ± 2.17	3.74 ± 3.19	4.84 ± 3.95	5.29 ± 4.00	5.36 ± 4.51	5.34 ± 4.85
Hygiene score	5.34 ± 1.94	5.36 ± 1.90	5.46 ± 1.92	5.09 ± 0.14	5.26 ± 1.89	4.97 ± 1.84	5.63 ± 1.93	6.00 ± 1.69
Urban index	30.4 ± 12.6	29.97 ± 12.8	28.65 ± 13.62	33.7 ± 14.2	35.9 ± 13.2	39.0 ± 13.7	41.3 ± 4.1	40.5 ± 13.6
Energy intake, kJ/d	6573 ± 3345	5878 ± 2864	5489 ± 2272	7172 ± 2617	5757 ± 2625	5753 ± 2596	5300 ± 2646	4769 ± 2119
Protein intake, % energy	13.2 ± 4.0	12.9 ± 3.72	12.7 ± 4.0	13.0 ± 2.5	13.6 ± 4.1	13.2 ± 3.9	14.7 ± 4.9	14.7 ± 4.5
Time pregnant, mo	0.00 ± 0.00	0.29 ± 1.21	1.43 ± 2.49	11.3 ± 10.3	2.5 ± 4.5	2.20 ± 4.78	1.05 ± 3.09	0.43 ± 1.90
Time lactating, mo	3.43 ± 1.35	5.94 ± 3.32	4.22 ± 4.74	15.73 ± 17.23	4.30 ± 8.50	4.14 ± 9.51	1.15 ± 5.21	0.67 ± 4.06
Currently lactating	0.79 ± 0.40	0.66 ± 0.47	0.15 ± 0.36	0.20 ± 0.40	0.13 ± 0.34	0.08 ± 0.27	0.05 ± 0.22	0.03 ± 0.18
Postmenopausal	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.03 ± 0.16	0.05 ± 0.23	0.14 ± 0.35	0.25 ± 0.43	0.39 ± 0.49
Not working	0.37 ± 0.48	0.35 ± 0.48	0.31 ± 0.46	0.23 ± 0.42	0.20 ± 0.40	0.17 ± 0.38	0.16 ± 0.37	0.20 ± 0.40
Sedentary work	0.02 ± 0.14	0.02 ± 0.15	0.02 ± 0.14	0.06 ± 0.24	0.08 ± 0.27	0.08 ± 0.27	0.07 ± 0.25	0.06 ± 0.24
Light work	0.59 ± 0.49	0.60 ± 0.49	0.62 ± 0.49	0.65 ± 0.48	0.46 ± 0.50	0.49 ± 0.50	0.51 ± 0.50	0.49 ± 0.50
Moderate work	0.00 ± 0.04	0.01 ± 0.08	0.00 ± 0.06	0.02 ± 0.14	0.17 ± 0.37	0.16 ± 0.37	0.19 ± 0.39	0.17 ± 0.38
Heavy work	0.02 ± 0.14	0.02 ± 0.16	0.04 ± 0.20	0.03 ± 0.18	0.09 ± 0.29	0.09 ± 0.29	0.08 ± 0.28	0.07 ± 0.26

¹Values are mean ± SD.