Table 2.

Unadjusted porphyrin values (µg/L), by gender and age

		Male							Female
	*	N	P10	P50	P90	Mean	95%	CI	N	P10	P50	P90	Mean	95%	CI
Uro	8	19	1.5	4.8	9.9	5.9	3.7	8.1	14	2.0	5.1	11.6	6.0	3.9	8.1
	9	64	3.1	6.9	14.4	7.7	6.6	8.9	45	3.0	6.5	15.1	8.0	6.4	9.7
	10	109	1.9	6.9	14.9	7.5	6.6	8.5	84	1.6	6.1	16.2	7.4	6.2	8.6
	11	119	1.3	6.1	16.8	8.0	6.7	9.3	88	2.4	6.3	16.3	7.9	6.7	9.1
	12	124	1.5	6.6	15.5	7.9	6.9	8.9	94	2.8	6.1	16.0	8.2	6.9	9.4
	13	116	2.5	7.6	18.7	9.5	7.9	11.2	92	1.9	7.1	15.3	8.8	7.2	10.3
	14	123	2.4	6.7	17.2	8.0	7.1	9.0	93	1.7	5.7	15.4	7.5	6.2	8.8
	15	119	2.4	6.0	18.0	8.2	7.0	9.4	94	1.6	5.0	13.4	6.6	5.5	7.6
	16	74	2.3	5.9	17.2	8.3	6.6	10.0	59	2.2	5.7	20.1	9.1	6.7	11.4
	17	50	1.6	6.8	15.4	8.1	6.3	10.0	33	2.2	7.0	13.5	7.5	5.8	9.2
	18	14	2.2	4.9	10.9	5.8	3.8	7.7	14	1.8	3.0	9.0	5.4	1.9	9.0
Hepta	8	19	0.1	1.0	2.9	1.2	0.7	1.8	14	0.3	1.1	2.7	1.4	0.8	1.9
	9	64	0.4	1.6	3.3	1.8	1.5	2.1	45	0.5	1.3	3.1	1.7	1.3	2.1
	10	109	0.3	1.4	3.8	1.8	1.5	2.0	84	0.2	1.6	3.4	1.8	1.4	2.1
	11	119	0.4	1.6	3.7	2.0	1.6	2.3	88	0.5	1.5	3.7	1.8	1.5	2.0
	12	124	0.5	1.6	3.2	1.9	1.7	2.1	94	0.5	1.6	3.4	2.0	1.6	2.4
	13	116	0.6	1.7	3.9	2.1	1.8	2.4	92	0.7	1.7	3.5	2.0	1.7	2.3
	14	123	0.7	1.6	3.6	1.8	1.6	2.0	93	0.5	1.3	2.7	1.5	1.3	1.8
	15	119	0.6	1.5	3.2	1.8	1.5	2.2	94	0.3	1.1	2.4	1.2	1.0	1.4
	16	74	0.6	1.3	4.0	1.9	1.5	2.3	59	0.4	1.0	3.5	1.6	1.3	2.0
	17	50	0.4	1.2	3.1	1.6	1.2	1.9	33	0.5	1.0	2.0	1.3	1.0	1.6
	18	14	0.4	1.2	1.9	1.3	0.8	1.7	14	0.3	0.8	2.0	1.1	0.4	1.7
Hexa	8	19	0.1	0.2	1.7	0.4	0.1	0.7	14	0.1	0.1	0.8	0.3	0.1	0.5
	9	64	0.1	0.3	1.2	0.5	0.3	0.6	45	0.1	0.3	0.9	0.4	0.2	0.7
	10	109	0.1	0.3	1.1	0.5	0.4	0.6	84	0.1	0.3	0.9	0.4	0.3	0.5
	11	119	0.1	0.3	1.0	0.5	0.4	0.6	88	0.1	0.3	1.0	0.4	0.3	0.5
	12	124	0.1	0.4	1.1	0.5	0.4	0.6	94	0.1	0.4	1.0	0.6	0.3	1.0
	13	115	0.1	0.4	1.3	0.6	0.5	0.7	92	0.1	0.4	0.9	0.5	0.4	0.6
	14	123	0.1	0.4	0.8	0.4	0.4	0.5	93	0.1	0.3	0.8	0.4	0.3	0.4
	15	119	0.1	0.3	0.7	0.4	0.3	0.4	94	0.1	0.2	0.5	0.3	0.2	0.3
	16	74	0.1	0.3	1.1	0.4	0.3	0.6	59	0.1	0.2	0.8	0.3	0.2	0.4
	17	50	0.1	0.2	0.7	0.4	0.2	0.5	33	0.1	0.2	0.4	0.3	0.2	0.3
	18	14	0.1	0.2	0.5	0.3	0.2	0.4	14	0.1	0.2	0.6	0.3	0.1	0.4
Penta	8	19	0.1	0.9	3.8	1.4	0.7	2.0	14	0.3	1.2	2.6	1.3	0.7	1.9
	9	64	0.1	1.3	3.8	1.8	1.4	2.1	45	0.1	0.9	3.5	1.5	1.1	1.9
	10	109	0.2	1.3	3.7	1.9	1.3	2.5	85	0.1	0.8	3.0	1.3	1.0	1.5
	11	119	0.2	1.6	4.2	1.9	1.6	2.2	88	0.1	1.4	3.9	1.8	1.4	2.1
	12	124	0.2	1.8	3.7	2.0	1.7	2.2	94	0.5	1.6	3.9	2.0	1.7	2.3
	13	116	0.5	1.6	4.2	2.0	1.7	2.4	92	0.4	1.5	3.4	1.8	1.5	2.0
	14	123	0.5	1.5	3.5	1.8	1.6	2.0	93	0.4	1.1	3.6	1.5	1.2	1.8
	15	119	0.4	1.3	3.3	1.6	1.3	1.8	94	0.2	0.9	2.2	1.2	1.0	1.4
	16	74	0.4	1.3	4.2	2.0	1.5	2.5	59	0.2	1.0	4.0	1.5	1.2	1.9
	17	50	0.3	1.3	3.4	1.6	1.2	1.9	33	0.4	1.2	2.1	1.3	1.0	1.6
	18	14	0.4	1.0	2.2	1.2	0.8	1.7	14	0.3	1.0	2.0	1.2	0.6	1.8
Copro	8	19	1.4	25.7	78.2	51.2	36.6	55.8	14	6.9	28.7	81.2	37.8	20.2	55.4
	9	64	5.2	40.7	98.3	50.0	40.2	59.9	45	2.0	30.5	86.0	38.8	28.9	48.7
	10	108	3.0	38.8	80.5	43.4	36.0	50.9	84	1.3	24.3	81.9	33.1	26.2	40.1
	11	119	5.2	40.2	89.5	46.5	39.9	53.1	88	2.3	33.7	82.7	38.0	31.5	44.5
	12	124	5.5	46.2	89.6	49.2	43.0	55.4	94	10.7	35.3	80.5	42.5	36.6	48.3
	13	116	15.3	46.5	96.2	53.5	47.1	59.8	92	10.4	35.6	76.3	41.7	35.7	47.7
	14	123	16.7	37.9	85.0	44.7	39.6	49.9	93	11.3	34.8	76.9	41.6	35.6	47.6
	15	119	13.4	37.4	76.2	42.5	36.4	48.6	94	8.1	25.9	55.9	34.1	27.3	41.0
	16	74	12.7	31.6	106.6	46.2	34.9	57.5	59	7.1	25.1	77.3	37.2	28.5	46.0
	17	50	12.9	37.9	90.6	45.8	35.3	56.3	33	14.2	36.2	60.2	38.2	30.6	45.8
	18	14	14.0	29.7	67.3	36.2	24.6	47.7	14	15.3	26.0	58.4	27.8	19.0	36.6
Total	8	19	4.1	32	87.7	60.1	41.8	68.4	14	9.5	42.7	88.8	46.7	27.6	65.9
	9	64	11.5	52	114.8	61.8	50.8	72.8	45	10.4	42.3	102.3	50.5	39.7	61.3
	10	108	8.5	50.5	100.4	55.0	46.6	63.4	84	4.9	33.7	98.4	43.9	35.8	52
	11	119	9.8	48.9	110.7	58.8	51.1	66.5	88	7.2	41.8	103	49.9	42.3	57.5
	12	124	9.4	55.6	114.5	61.4	54.2	68.5	94	20.1	46.5	100.6	55.3	48.2	62.3
	13	115	24.1	61.3	124.1	68.2	60.7	75.7	92	16.2	46.9	95.5	54.7	47.2	62.2
	14	123	22.9	51.1	99.7	56.8	50.9	62.7	93	16.3	45.4	94.8	52.5	45.5	59.6
	15	119	17.9	45.9	99.1	54.4	47.2	61.7	94	12.2	34.8	72.8	43.4	35.7	51.1
	16	74	17.9	39.7	124.9	58.8	45.7	72	59	11.4	33.8	103.3	49.8	38.7	60.9
	17	50	16.9	47.5	106.4	57.4	45.2	69.7	33	20.5	43.4	75.3	48.6	39.3	57.8
	18	14	21	39.9	76.8	44.7	31.9	57.5	14	18.3	30	69.8	35.7	24	47.5

^*Age in years