Table 1.

Characteristics of Participants by Urban Life-Years and Gender, Indian Migration Study, 2005–2007

	Urban Life-Years, Men																Urban Life-Years, Women
	0a			>0–10			>10–20			>20–30			>30			Ptrend	0a			>0–10			>10–20			>20–30			>30			Ptrend
	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)		No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)
No. of participants	1,357			152			299			404			374				590			240			263			402			140
Age, years			39.7 (11.5)			34.5 (7.7)			36.8 (7.0)			45.9 (5.7)			52.3 (4.6)	<0.001			41.4 (11.6)			29.6 (7.4)			37.6 (5.3)			43.4 (4.9)			50.3 (4.3)	<0.001
Socioeconomic positionb
Low	130	9.6		2	1.3		0	0.0		0	0.0		2	0.5		<0.001	92	15.6		3	1.3		0	0.0		1	0.3		1	0.7		<0.001
Middle	399	29.4		9	5.9		11	3.7		2	0.5		3	0.8			156	26.4		13	5.4		4	1.5		4	1.0		0	0.0
High	828	61.0		141	92.8		288	96.3		402	99.5		369	98.7			342	58.0		224	93.3		259	98.5		397	98.8		139	99.3
Marital status
Not married	254	18.7		16	10.5		7	2.3		11	2.7		6	1.6		<0.001	139	23.6		8	3.3		8	3.0		9	2.2		14	10.0		<0.001
Currently married	1,103	81.3		136	89.5		292	97.7		393	97.3		368	98.4			451	76.4		232	96.7		255	97.0		393	97.8		126	90.0
Occupation
Manual/housework	841	62.0		20	13.2		22	7.4		24	5.9		24	6.4		<0.001	528	89.5		221	92.1		251	95.4		369	91.8		115	82.4		0.002
Skilled manual	230	17.0		98	64.5		232	77.6		194	48.0		151	40.4			19	3.2		8	3.3		6	2.3		7	1.7		9	6.3
Nonmanual	286	21.1		34	22.4		45	15.1		186	46.0		199	53.2			43	7.3		11	4.6		6	2.3		26	6.5		16	11.4
Household type
Nuclear family or singlec	666	49.1		115	75.7		262	87.6		334	82.7		289	77.3		<0.001	365	61.9		197	82.1		211	80.2		339	84.3		101	72.1		<0.001
Extended family	691	50.9		37	24.3		37	12.4		70	17.3		85	22.7			225	38.1		43	17.9		52	19.8		63	15.7		39	27.9
Standing height			165.6 (6.4)			166.7 (6.0)			165.7 (6.2)			165.9 (5.9)			165.4 (6.4)	0.2005			152.1 (5.7)			153.7 (5.0)			153.1 (5.4)			152.6 (6.0)			151.6 (5.4)	0.0006

Abbreviation: SD, standard deviation.

^aThese categories included nonmigrants.

^bSocioeconomic position was calculated by using subsets of the questions from the Standard of Living Index scaled to the full scale score: low = 0–14, middle = 15–24, and high = 25–67.

^cOnly 75 subjects were single.