IPUMS USA: descr: ELDCH

IPUMS USA

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ELDCH

Age of eldest own child in household

Return to Family Interrelationship variables list

Codes and Frequencies

Category availability view
Case-count view

An 'X' indicates the category is available for that sample

Code	Label	2023 acs	2022 acs	2021 acs	2016 acs	2011 acs	2006 acs	2000 1pct	1990 1pct	1980 1pct	1970 met2	1970 met1	1960 1pct	1950 1pct	1940 1pct	1930 1pct	1920 1pct	1910 1pct	1900 1pct	1880 1pct	1870 1pct	1860 1pct	1850 1%+
00	Less than 1 year old	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
01	1	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
02	2	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
03	3	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
04	4	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
05	5	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
06	6	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
07	7	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
08	8	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
09	9	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
10	10	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
11	11	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
12	12	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
13	13	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
14	14	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
15	15	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
16	16	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
17	17	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
18	18	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
19	19	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
20	20	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
21	21	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
22	22	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
23	23	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
24	24	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Code	Label	2023 acs	2022 acs	2021 acs	2016 acs	2011 acs	2006 acs	2000 1pct	1990 1pct	1980 1pct	1970 met2	1970 met1	1960 1pct	1950 1pct	1940 1pct	1930 1pct	1920 1pct	1910 1pct	1900 1pct	1880 1pct	1870 1pct	1860 1pct	1850 1%+
25	25	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
26	26	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
27	27	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
28	28	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
29	29	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
30	30	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
31	31	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
32	32	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
33	33	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
34	34	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
35	35	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
36	36	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
37	37	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
38	38	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
39	39	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
40	40	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
41	41	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
42	42	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
43	43	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
44	44	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
45	45	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
46	46	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
47	47	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
48	48	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
49	49	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Code	Label	2023 acs	2022 acs	2021 acs	2016 acs	2011 acs	2006 acs	2000 1pct	1990 1pct	1980 1pct	1970 met2	1970 met1	1960 1pct	1950 1pct	1940 1pct	1930 1pct	1920 1pct	1910 1pct	1900 1pct	1880 1pct	1870 1pct	1860 1pct	1850 1%+
50	50	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
51	51	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
52	52	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
53	53	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
54	54	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
55	55	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
56	56	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
57	57	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
58	58	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
59	59	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
60	60	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
61	61	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
62	62	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
63	63	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
64	64	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
65	65	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
66	66	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	X
67	67	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	X
68	68	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
69	69	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·
70	70	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
71	71	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·
72	72	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	X
73	73	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	X	·	X	X
74	74	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·
Code	Label	2023 acs	2022 acs	2021 acs	2016 acs	2011 acs	2006 acs	2000 1pct	1990 1pct	1980 1pct	1970 met2	1970 met1	1960 1pct	1950 1pct	1940 1pct	1930 1pct	1920 1pct	1910 1pct	1900 1pct	1880 1pct	1870 1pct	1860 1pct	1850 1%+
75	75	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·
76	76	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	X	X	X	·	·
77	77	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·	·	·
78	78	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·	·	·	·
79	79	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·
80	80	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·
81	81	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	·	·	·	·	·
82	82	X	X	X	X	X	X	X	X	X	X	X	X	·	X	X	·	·	·	·	·	·	·
83	83	X	X	X	X	·	X	X	X	X	X	X	X	X	X	X	·	·	·	·	·	·	·
84	84	X	X	X	·	X	X	X	X	X	X	X	X	·	X	X	·	X	·	·	X	·	·
85	85	X	·	X	X	X	·	X	X	X	X	X	X	·	X	X	·	·	·	X	·	·	·
86	86	X	·	X	X	X	·	X	X	X	X	X	X	X	X	X	·	·	·	·	·	·	·
87	87	X	·	X	·	X	X	X	·	X	X	X	·	·	X	·	X	X	·	·	·	·	·
88	88	X	·	·	X	X	·	X	·	X	X	X	X	·	X	·	X	·	·	·	·	·	·
89	89	X	X	·	X	X	·	·	·	X	X	X	X	X	X	·	·	·	·	·	·	·	·
90	90	·	·	·	·	·	·	·	X	X	X	X	·	·	·	·	·	·	·	·	·	·	·
91	91	·	·	·	·	·	·	·	·	·	X	X	·	·	·	·	·	·	·	·	·	·	·
92	92	·	·	·	·	·	X	·	·	·	X	X	·	·	X	·	·	·	·	·	·	·	·
93	93	X	·	·	·	X	·	X	·	·	X	X	·	X	·	·	X	·	·	·	·	·	·
94	94	X	·	·	·	·	·	·	·	·	X	X	·	X	·	·	·	·	·	·	·	·	·
95	95	·	·	·	·	·	·	·	·	·	X	X	·	·	·	·	·	X	·	·	·	·	·
96	96	·	·	·	·	·	·	·	·	·	X	X	·	·	X	·	·	·	·	·	·	·	·
97	97	·	·	·	·	·	·	·	·	·	X	X	·	·	·	·	·	·	·	·	·	·	·
98	98	·	·	·	·	·	·	·	·	·	X	X	X	·	X	·	·	·	·	·	·	·	·
99	N/A	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X

Comparability

From 1850 to 1930 and in the ACS and PRCS, all parent-child relationships can theoretically be identified, but for censuses from 1940 onward parent-child relationships cannot be identified for persons in group quarters. Group quarters individuals in the period since 1940 are coded 99 (N/A) in ELDCH, even though on rare occasions parents in group quarters may actually have resided with their children.

The comparability of this variable is affected by the information available on family relationships, including MOMLOC,MOMLOC2, POPLOC, and POPLOC2. MOMLOC2 and POPLOC2 are available only in 1970 and later. In 2017, the family interrelationship variables for samples from 1970 to present were revised to increase comparability across IPUMS projects and include same-sex couples. Samples prior to 1970 continue to use the original version of family interrelationship variables. Users will find it useful to read a brief overview of the key differences of the New IPUMS Family Interrelationship Variables.

ELDCH is based on the information contained in RELATE (Relationship to household head), MOMLOC, and POPLOC, for all years except 1850-1870. In these years, it is constructed from IMPREL (Imputed relationship). See MOMRULE, POPRULE and "Family Interrelationships" for a discussion of variations across years in these variables.

Of particular note, users should be aware that in years without SURSIM (1960 to 2000 censuses, the ACS and the PRCS) MOMLOC and POPLOC are not available for persons whose relationship to the head (see RELATE) is unspecified other relative or nonrelative if they are age 19 or older. Thus in these years, the eldest child in the household will be the eldest child under age 19. In years with SURSIM (prior to 1960), all appropriate links are made for all unspecified relatives and nonrelatives regardless of age.

Availability

United States

2023: All samples
2022: All samples
2021: All samples
2020: All samples
2019: All samples
2018: All samples
2017: All samples
2016: All samples
2015: All samples
2014: All samples
2013: All samples
2012: All samples
2011: All samples
2010: ACS; ACS 3yr; ACS 5yr
2009: All samples
2008: All samples
2007: All samples
2006: All samples
2005: All samples
2004: All samples
2003: All samples
2002: All samples
2001: All samples
2000: All samples
1990: All samples
1980: All samples
1970: All samples
1960: All samples
1950: All samples
1940: All samples
1930: All samples
1920: All samples
1910: All samples
1900: All samples
1880: All samples
1870: All samples
1860: All samples
1850: All samples

Puerto Rico

2023: All samples
2022: All samples
2021: All samples
2020: All samples
2019: All samples
2018: All samples
2017: All samples
2016: All samples
2015: All samples
2014: All samples
2013: All samples
2012: All samples
2011: All samples
2010: PRCS; PRCS 3yr; PRCS 5yr
2009: All samples
2008: All samples
2007: All samples
2006: All samples
2005: All samples
2000: All samples
1990: --
1980: --
1970: --
1930: All samples
1920: All samples
1910: All samples

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