Table 1.

The frequencies n, percentages % of population distribution, according to study variables and data in the Nominal Vaccination Registry (NVR) n = 970.

Variables		Influenza Vaccinated n %	Influenza Unvaccinated n %	p *	Tdap Unvaccinated n %	Tdap Unvaccinated n %	p *	Total n
Vaccination coverage		623 64.2	347 35.8	NA	871 89.8	99 10.2	NA	970
Department	TV	297 73.7	106 26.3	0.001	347 86.1	56 13.9	0.001	403
	EC	326 57.5	241 42.5		524 92.4	43 7.6		567
Country of origin	Spain	421 60.8	271 39.2	0.001	635 91.8	57 8.2	0.001	692
	Not Spain	202 72.7	76 27.3		236 84.9	42 15.1		278
Previous pregnancies	0	21 60.0	14 40.0	0.003	31 88.6	4 11.4	0.917	35
	1	602 65.4	318 34.6		827 89.9	93 10.1		920
	≥2	7 33.3	8 66.7		13 83.3	2 16.7		15
Abortion	No	613 64.5	338 35.5	0.048	853 89.7	98 10.3	0.715	951
	Yes	10 60.0	9 40.0		18 93.3	1 6.7		19
Parity	0	18 43.9	23 56.1	0.019	37 90.2	4 9.8	0.176	41
	≥1	605 65.1	324 34.9		834 89.9	95 10.1		929
Visit to the midwife	Oct	141 71.9	55 28.1	0.031	-	-	NA	196
	Nov	423 63.3	245 36.7		-	-		668
	Dec	43 54.4	36 45.6		-	-		79
	Jan	16 59.3	11 40.7		-	-		27
Intention to be vaccinated	Yes	596 77.9	169 2 2.1	0.001	-	-	NA	765
	No	27 13.2	178 86.8		-	-		205
Vaccinated Tdap	Yes	560 57.7	311 32.0	0.52	-	-	NA	871
	No	63 6.5	36 3.7		-	-		99
Age	Mean SD	30.4 5.6	31.4 5.3	NA	31.0 5.3	29.1 6.6	NA	970

(*) p-values of Chi-square test to check the significance of the differences among categories. Tdap = Tetanus, Diphtheria, Pertussis for adults; NVR = Nominal Vaccination Registry; TV = Torrevieja; EC = Elche-Crevillente; Oct = October; Nov = November; Dec = December; Jan = January; SD = Standard Deviation; NA = No analysis.