1990 Population Census - IPUMS Subset

Indonesia, 1990

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Reference ID

IDN_1990_PHC_v01_M_v7.5_A_IPUMS

Producer(s)

Central Bureau of Statistics, IPUMS

Metadata

Documentation in PDF DDI/XML JSON

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Dec 20, 2012

Last modified

Sep 03, 2025

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Age (ID1990A_AGE)

Data file: IDN1990_PHC-P-H.dat

Overview

Type: Discrete

Decimal: 0

Start: 249

End: 250

Width: 2

Range: -

Format: Numeric

Questions and instructions

Literal question

<svar v="ID90A401 ID90A402 ID90A403 ID90A404 ID90A405 ID90A406 ID90A407 ID90A408 ID90A409 ID90A410 ID90A411 ID90A412 ID90A413 ID90A414 ID90A415 ID90A416 ID90A417 ID90A418 ID90A419 ID90A420 ID90A421 ID90A422 ID90A423 ID90A424 ID90A425 ID90A426 ID90A427 ID90A428 ID90A429 ID90A430 ID90A431 ID90A432 ID90A433 ID90A434 ID90A436 ID90A438 ID90A439 ID90A440 ID90A441 ID90A442 ID90A443 ID90A444 ID90A445 ID90A446 ID90A447 ID90A448 ID90A449 ID90A450 ID90A451 ID90A452 ID90A453 ID90A454 ID90A455 ID90A456 ID90A457 ID90A458 ID90A459 ID90A460 ID90A461 ID90A462">VI. Household member characteristics </svar>

<svar v="ID90A401 ID90A402 ID90A403 ID90A404 ID90A405 ID90A406 ID90A407 ID90A408 ID90A409 ID90A410 ID90A411 ID90A412 ID90A413 ID90A414 ID90A415">VI-A: All ages [Questions 1-13.] </svar>

<svar a="all" v="ID90A406">4. Age <div class="i1">_ _ years</div> </svar>

Categories

Value	Category
00	Under 1
01	1
02	2
03	3
04	4
05	5
06	6
07	7
08	8
09	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	40
41	41
42	42
43	43
44	44
45	45
46	46
47	47
48	48
49	49
50	50
51	51
52	52
53	53
54	54
55	55
56	56
57	57
58	58
59	59
60	60
61	61
62	62
63	63
64	64
65	65
66	66
67	67
68	68
69	69
70	70
71	71
72	72
73	73
74	74
75	75
76	76
77	77
78	78
79	79
80	80
81	81
82	82
83	83
84	84
85	85
86	86
87	87
88	88
89	89
90	90
91	91
92	92
93	93
94	94
95	95
96	96
97	97
98	98 years and above
99	Unknown

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Interviewer instructions

<svar a="all" v="ID90A406">Question 4: Age (year of birth) Information about age is very important, hence it should be asked correctly and carefully. Age is counted in years rounded downwards, or the age based on the last birthday. If the respondent only knows another calendar system, then the age information should be converted into the Christian calendar. This manual only includes the conversion [table] between Javanese, Sundanese and Islamic calendars (Attachment 4 and Attachment 5). Attachment 6 describes the method to calculate the age of the respondents if the date, month and year of birth are known. This list is made to calculate the age of respondents who were born from 1964/1965 onward. There are some ways of calculating the age based on information gained from the respondent. <div class="i1">1. If the date, month and year in the Christian calendar are known, then age can be directly calculated. 2. If the date, month and year are known in the the Islamic calendar, then use Conversion I in Attachment 4 for birth years 1982-1990 (1402 H - 1410 H). Use Conversion II in Attachment 5 for birth years before 1982 (1402 H). 3. If month and year are known in the Islamic calendar, use Conversion II in Attachment 5 for birth years 1938-1981 (1356 H - 1401 H). 4. If only the month and year are known in the Christian calendar, then age can be calculated using the Assistance list in Attachment 6. 5. If only the year of birth is known in the Islamic calendar, use Attachment 4 and Attachment 5 for the birth years 1938-1990 (1356 H - 1410 H).</div> If the month of birth is unknown, try to gain this information using several ways that have been explained before in the procedure of getting information of age section. Example: <div class="i1">1. Suwardi was born on January 1946 and the interview is held on October 1990; subtract 1946 from 1990, and because January is before October, then his age is (1990-1946) = 44 years. 2. Purwanti was born on the 30th of December 1954 and the interview is held on the 10th of October 1990. Thus the time between year of birth and year of interview is (1989-1954) = 35 because on the enumeration date Purwanti is not yet 36 years old, thus Purwanti's age is 35 years. 3. Aminudin says that he was born in 1925, but he does not know the exact date and month. Because the SP90 is conducted in October, then it is assumed that he is (1990-1925) 65 years old.</div> Enumeration is conducted in a society that uses the Islamic calendar. A child was born on the 12th of Zulkaidah two years before the interview. In Attachment 4, Table D (1987) can be seen that Zulkaidah can be converted [to a date between] June 27 and July 27, 1987. Therefore, the 12th of Zulkaidah equals (26 + 12 - 30) = July 8, 1987. If the respondent was born on the 3rd of Zulkaidah two years before the interview, then the respondent was born on (26 + 3) = June 29, 1987. If the respondents only know the age/birth year outside the Christian calendar, such as the Javanese calendar, Sundanese calendar, or Islamic calendar, convert the age/birth year into the Christian calendar. If the respondents do not know their age at all, try to obtain the age by using [one of] several ways as follows: <div class="i1">1. Ask for the identity card, birth certificate or baptism letter that can give information about their age. Subtract the the date of issue of those documents from the date of the enumeration. 2. Relate the age of that person to the age of other household members whose age is known. For example, a mother says that she was 19 years old when her first child was born and her child is 13 years old now. Therefore, the calculation of the mother's age is (19 + 13) 32 years. 3. Associate the birth year with the important national/local event, then subtract [that year] from the year 1989. In some areas, age may be predicted from the seasons, cultural/religious ceremony, seed time/crop time, etc. Some important events are: <ul class="b2">
<li>Indonesia's Independence Day: August 17, 1945</li>

<li>First election: 1955</li>

<li>The 30th September Movement/Indonesian Communist Party (1965): September 30, 1965</li>
</ul> 4. When obtaining information on age using the second and the third method above, an opinion from the religious/society leader or village administrator is needed. 5. Use the methods above to gain information about age. The enumerators are not allowed to fill out the age of respondent in the Questionnaire with N/A (not answered) or leave it empty.</div> Ask the date, month and year of birth for every household member. Write it down on the paper provided, and then calculate age using the methods that have been elaborated above. </svar>

Description

Definition

This variable indicates the person's age at their last birthday (years).

Universe

Indonesia 1990: All persons

concept

Concept

var_concept.title	Vocabulary
Demographic Variables -- PERSON	IPUMS

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