Table 2.

Distribution of consanguineous unions, total marriages, and IC-F across geographic location, mother tongue, and caste systems

Variable	Consanguineous unions		Total marriages		Bivariate logistic regression OR	IC-F
	No	%	No	%
Tehsils*
Sadiqabad	527	56.0	941	43.3	1.00	0.0342
Rahim Yar Khan	377	63.0	598	27.5	1.34*	0.0386
Khanpur	328	56.8	578	26.6	1.03	0.0342
Liaquatpur	39	68.4	57	2.6	1.70	0.0367
Total	1271	58.5	2174	100.0		0.0355
Rural/urban origin*
Rural	844	60.7	1390	63.9	1.29*	0.0370
Urban	427	54.5	784	36.1	1.00	0.0327
Mother tongue*
Punjabi	499	45.2	1105	50.8	1.00	0.0278
Saraiki	706	75.4	937	43.1	3.71*	0.0454
Urdu	23	46.0	50	2.3	0.99	0.0275
Others	43	52.4	82	3.8	1.66	0.0309
Caste system** (n = 1501)*
Araina	239	39.0	613	28.2	1.00	0.0239
Malikb	67	77.9	86	4.0	5.52*	0.0458
Arainb	54	80.6	67	3.1	6.50*	0.0483
Balouchb	50	58.1	86	4.0	2.17*	0.0338
Bhattib	37	74.0	50	2.3	4.45*	0.0441
Juta	49	45.0	109	5.0	1.28	0.0288
Khokharb	41	91.1	45	2.1	16.04*	0.0535
Larrb	37	84.1	44	2.0	8.27*	0.0526
Malika	28	58.3	48	2.2	2.19*	0.0332
Mughala	22	51.2	43	2.0	1.64	0.0334
Rajputa	72	53.7	134	6.2	1.82*	0.0332
Sheikhb	37	80.4	46	2.1	6.43*	0.0530

^aPredominantly Punjabi speaking

^bPredominantly Saraiki speaking

^Pushto speaking

*Distribution was statistically significant; **caste systems with sample size ≥42 are shown