Table 2.

Sociodemographic characteristics, habits and clinical and histopathological features of the individuals with actinic cheilitis (AC) and lip squamous cell carcinoma (LSCC)

	Regions										Total
	North		North–East		South		South–East		Mid-East
	AC	LSCC	AC	LSCC	AC	LSCC	AC	LSCC	AC	LSCC	AC	LSCC
Gender
Male	15	14	251	56	248	444	861	132	64	27	1439	673
Female	10	5	81	24	93	93	378	46	13	8	575	176
NI	0	0	0	0	2	1	1	0	0	0	3	1
Age (years/decades)	Mean: 59.8 ± 11.2; range: 43–97	Mean: 67.1 ± 16.9; range: 17–99	Mean: 54.6 ± 14.0; range: 12–85	Mean: 65.1 ± 15.5; range: 26–103	Mean: 57.1 ± 13.9; range: 4-100	Mean: 60.0 ± 13.6; range: 18–102	Mean: 59.0 ± 14.0; range: 3–93	Mean: 60.0 ± 15.6; range: 7–91	Mean: 55.8 ± 12.6; range: 3–80	Mean: 58.7 ± 17.0; range: 35–95	Mean: 54.8 ± 18.7; range: 3-100	Mean: 57.8 ± 19.0; range: 7-103
0–9	0	0	0	0	2	0	1	2	0	0	3	2
10–19	0	1	1	0	2	1	3	0	1	0	7	2
20–29	0	0	19	1	9	11	28	2	1	0	57	14
30–39	0	0	27	3	19	31	94	14	2	4	142	52
40–49	1	0	59	11	46	48	154	26	16	8	276	93
50–59	14	3	85	8	99	152	253	39	24	6	475	208
60–69	7	6	87	21	96	153	360	37	20	5	570	222
70–79	0	3	38	18	44	83	217	39	10	7	309	150
80–89	1	4	5	11	6	32	54	10	1	1	67	58
90–99	1	1	0	0	0	1	4	3	0	2	5	7
100–109	0	0	0	1	2	2	0	0	0	0	1	3
NI	1	1	11	6	18	24	72	6	2	2	104	39
Skin colour
Fair-skinned	7	8	220	52	324	507	1031	135	58	24	1640	726
Brown-skinned	9	5	68	16	5	10	149	30	8	6	239	69
NI	9	6	44	12	14	21	60	13	11	5	138	55
Symptomatology
Symptomatic	2	6	39	29	1	14	133	10	2	2	177	62
Asymptomatic	8	0	252	47	2	42	750	11	29	7	1041	107
NI	15	13	41	4	340	482	357	157	46	26	799	681
Anatomical location
Upper lip	0	2	3	3	15	13	8	5	1	0	27	23
Lower lip	25	17	329	77	328	525	1232	173	76	35	1990	827
NI	0	0	0	0	0	0	0	0	0	0	0	0
Occupation
Indoor	10	3	121	35	123	201	124	76	26	12	404	329
Outdoor	7	10	130	27	101	168	48	35	24	9	310	249
NI	8	6	81	18	119	169	1068	67	27	14	1303	272
Evolution time (months)	Median: 12; range: 2–120	Median: 12; range: 5–144	Median: 12; range: 0.5–420	Median: 12; range: 1–72	Median: 12; range: 0.25–480	Median: 12; range: 0.5–720	Median: 12; range: 0.25–600	Median: 6; range: 0.25–240	Median: 24; range: 0.25–480	Median: 6.5; range: 1-144	Median: 12; range: 0.25–600	Median: 12; range: 0.25–720
NI		3	173	28	205	308	586	49	32	3	999	391
Previous history of ACa
Yes	–	1	–	22	–	35		9		5	–	72
NI	–	18	–	58	–	503	–	169	–	30	–	778
Manifestation type
Primary	23	18	166	64	257	415	231	157	58	31	735	685
Recurrent	2	0	64	0	13	27	24	13	5	2	108	42
NI	0	1	102	16	73	96	985	8	14	2	1174	123
Habits
Tobacco smoking
Yes	6	9	14	5	22	83	28	14	10	10	80	121
No	0	0	0	0	3	24	0	0	0	0	3	24
Ex-smoker	2	0	2	0	9	28	4	4	6	2	23	34
NI	17	10	316	75	309	403	1208	160	61	23	1911	671
Alcohol consumption
Yes	9	8	1	5	3	23	12	8	8	5	33	49
No	0	0	0	1	0	22	0	0	0	0	0	23
Ex-consumer	1	1	0	0	0	24	2	0	0	0	3	25
NI	15	10	331	74	340	469	1226	170	69	30	1981	753
Chronic solar exposure
Yes	0	1	27	21	23	54	21	10	4	5	75	91
No	0	0	6	0	1	18	0	0	0	0	7	18
NI	25	18	299	59	319	466	1219	168	73	30	1935	741

NI not informed

^aThis variable does not apply to AC