Table 1.

Demographic characteristics among women who tested positive for any HPV type (N=327)

	n (%)	Ferritin (ug/L)	sTfR (ug/L)	sTfR-F Index
		Median (Min – Max)	Median (Min – Max)	Median (Min – Max)
Age (years)a
≤ 20	36 ( 11.0 )	26.6 (14.2 – 391.5)	2.1 (1.3 – 5.0)	1.2 (0.6 – 2.8)
21 – 30	135 ( 41.3 )	30.5 (1.0 – 350.0)	1.9 (0.1 – 4.8)	1.0 (0.1 – 3.2)
31 – 40	102 ( 31.2 )	26.4 (12.9 – 302.2)	2.0 (1.1 – 8.2)	1.1 (0.4 – 6.2)
> 40	54 ( 16.5 )	22.0 (11.5 – 315.9)	2.0 (1.0 – 7.5)	1.0 (0.6 – 4.6)
Race/Ethnicitybc
White	192 ( 58.9 )	26.4 (1.0–391.5)	1.9 (0.1 – 8.2)	1.0 (0.1 – 6.2)
Non-White	134 ( 41.1 )	27.5 (14.3 – 350.0)	2.1 (1.1 – 7.1)	1.2 (0.4 – 4.3)
Marital Status
Common Law	113 ( 34.6 )	29.3 (13.1 – 338.7)	2.0 (1.2 – 7.1)	1.1 (0.6 – 4.3)
Divorced	28 ( 8.6 )	22.1 (11.5 – 184.4)	1.9 (1.0 – 7.5)	1.0 (0.6 – 4.6)
Married	109 ( 33.3 )	25.1 (1.0 – 302.2)	2.0 (0.1 – 8.2)	1.0 (0.1 – 6.2)
Single	70 ( 21.4 )	31.7 (10.9 – 391.5)	2.1 (1.0 – 4.5)	1.2 (0.5 – 2.9)
Widow	7 ( 2.1 )	21.3 (15.5 – 46.5)	1.8 (1.4 – 2.1)	0.9 (0.6 –1.3)
Education
< Elementary	63 ( 19.3 )	27.6 (12.9 – 315.9)	2.2 (1.1 – 5.8)	1.2 (0.4 – 3.1)
Elementary	181 ( 55.5 )	26.4 (1.0 – 391.5)	2.0 (0.1 – 7.5)	1.0 (0.1 – 4.6)
< High School	44 ( 13.5 )	36.7 (10.9 – 338.7)	1.9 (1.0 – 4.5)	1.0 (0.6 – 2.9)
≥ High School	38 ( 11.7 )	24.5 (13.2 – 209.1)	1.8 (1.2 – 8.2)	1.0 (0.5 – 6.2)
Monthly Income (US$)
< 250	75 ( 23.7 )	26.5 (11.54 – 350.0)	2.0 (1.0 – 7.1)	1.1 (0.4 – 4.3)
250 – 450	83 ( 26.2 )	26.6 (1.0 – 240.1)	1.9 (0.1 – 7.5)	1.1 (0.1 – 4.6)
451 – 724	71 ( 22.4 )	27.9 (13.1 – 230.2)	2.0 (1.2 – 5.2)	1.1 (0.6 – 4.5)
≥ 725	88 ( 27.8 )	28.8 (10.9 – 391.5)	2.0 (1.0 – 5.4)	1.1 (0.6 – 3.2)
Smoking statusb
Never	161 ( 49.4 )	27.7 (1.0 – 391.5)	2.1 (0.1 – 8.2)	1.1 (0.1 – 6.2)
Former	55 ( 16.9 )	28.4 (13.1 – 315.9)	1.9 (1.1 – 5.0)	1.0 (0.4 – 3.1)
Current	110 ( 33.7 )	26.0 (12.9 – 350.0)	1.9 (1.2 – 7.5)	1.0 (0.5 – 4.6)
Alcohol usebc
Yes	237 ( 72.5 )	26.6 (1.0 – 391.5)	2.0 (0.1 – 7.1)	1.0 (0.1 – 4.3)
No	90 ( 27.5 )	27.5 (11.5 – 315.9)	2.1 (1.0 – 8.2)	1.2 (0.5 – 6.2)
Oral contraceptive usec
Never	61 ( 18.7 )	26.5 (10.9 – 391.5)	2.0 (1.0 – 7.5)	1.2 (0.5 – 4.6)
< 6 years	185 ( 56.8 )	29.4 (11.5 – 247.2)	2.1 (1.0 – 8.2)	1.1 (0.6 – 6.2)
≥ 6 years	80 ( 24.5 )	22.1 (1.0 – 338.7)	1.9 (0.1 – 5.2)	0.9 (0.1 – 4.5)
Total no. of pregnancies
0 – 1	67 ( 20.7 )	26.3 (10.9 – 391.5)	2.0 (1.0 – 4.5)	1.1 (0.6 – 2.9)
2 – 3	133 ( 41.2 )	28.9 (1.0 – 240.1)	1.9 (0.1 – 8.2)	1.1 (0.1 – 6.2)
4 – 6	94 ( 29.1 )	25.7 (11.5 – 315.9)	2.0 (1.0 – 5.4)	1.0 (0.4 – 3.1)
7+	29 ( 9.0 )	33.8 (15.2 – 104.4)	2.2 (1.4 – 7.1)	1.2 (0.6 – 4.3)
Age at first intercourse
≤ 15	101 ( 31.0 )	27.2 (1.0 – 391.5)	2.1 (0.1 – 5.4)	1.1 (0.1 – 3.2)
16 – 17	88 ( 27.0 )	26.4 (11.5 – 338.7)	1.9 (1.0 – 7.1)	0.9 (0.6 – 4.3)
18 – 19	73 ( 22.4 )	28.0 (10.9 – 184.4)	2.0 (1.0 – 5.0)	1.1 (0.6 – 3.8)
≥ 20	64 ( 19.6 )	26.7 (15.5 – 350.0)	2.0 (1.1 – 8.2)	1.2 (0.4 – 6.2)
Lifetime no. of sexual partnersbc
0 – 1	112 ( 34.4 )	25.9 (1.0 – 338.7)	2.0 (0.1 – 8.2)	1.1 (0.1 – 6.2)
2 – 3	125 ( 38.3 )	29.1 (10.9 – 391.5)	2.1 (1.0 – 7.1)	1.2 (0.6 – 4.3)
≥ 4	89 ( 27.3 )	25.5 (11.5 – 209.1)	1.8 (1.0 – 5.0)	1.0 (0.5 – 3.8)
Total no. of sexual partners in the last five years
0 – 1	208 ( 63.8 )	28.5 (1.0 – 338.7)	2.0 (0.1 – 8.2)	1.1 (0.1 – 6.2)
≥ 2	118 ( 36.2 )	26.0 (10.9 – 391.5)	2.0 (1.0 – 5.4)	1.1 (0.6 – 3.2)
Total no. of sexual partners during the last year
0 – 1	291 ( 89.8 )	27.5 (1.0 – 391.5)	2.0 (0.1 – 8.2)	1.1 (0.1 – 6.2)
≥ 2	33 ( 10.2 )	27.0 (13.2 – 350.0)	2.1 (1.2 – 4.7)	1.1 (0.7 – 2.6)
Age at Menarche
0–11 years	74 ( 22.6 )	26.3 (13.1 – 209.1)	2.0 (1.2 – 8.2)	1.1 (0.6 – 6.2)
12–19 years	253 ( 77.4 )	27.5 (1.0 – 391.5)	2.0 (0.1 – 7.5)	1.1 (0.1 – 4.6)
Condom use
Always	14 ( 4.3 )	33.4 (18.8 – 153.9)	1.8 (1.3 – 3.6)	1.0 (0.6 – 2.8)
Never/Occasionally	313 ( 95.7 )	26.6 (1.0 – 391.5)	2.0 (0.1 – 8.2)	1.1 (0.1 – 6.2)

Kruskal-Wallis test was used to compare means,

^aFerritin vary significantly,

^bsTfR vary significantly,

^csTfR per Ferritin vary significantly,

sTfR= Soluble Transferrin Receptor