Table 4. Association between sociodemographic characteristics of secondary school teachers in Lagos, Nigeria, and their knowledge level about asthma (N=988).

	Knowledge level, n (%)
Sociodemographic characteristics	Poor (n=475)	Fair (n=414)	Good (n=99)	χ²/t	p-value
Age (years)				16.428	0.172
<20	1 (0.2)	3 (0.6)	0 (0)
21 - 30	42 (8.8)	23 (5.6)	8 (8.1)
31 - 40	119 (25.1)	86 (20.8)	21 (21.2)
41 - 50	209 (44.0)	172 (41.5)	43 (43.4)
51 - 60	104 (21.9)	129 (31.2)	27 (27.3)
61+	0 (0)	1 (0.2)	0 (0)
Gender				3.128	0.20
Male	184 (51.8)	138 (38.9)	33 (9.3)
Female	291 (46)	276 (43.6)	66 (10.4)
Level of education				13.292	0.208
National Certificate of Education	32 (6.7)	27 (6.5)	7 (7.1)
Bachelor’s degree	344 (72.4)	282 (68.1)	58 (58.6)
Diploma in Education	24 (5.1)	24 (5.8)	6 (6.1)
Master’s degree	67 (14.1)	70 (16.9)	22 (22.2)
Doctorate	1 (0.2)	3 (0.3)	1 (0.1)
Not specified	7 (1.5)	8 (1.9)	5 (5.1)
Marital status				5.490	0.856
Single	52 (10.9)	38 (9.2)	5 (5.1)
Married	402 (84.6)	355 (85.7)	88 (88.9)
Widowed	15 (3.2)	13 (3.1)	4 (4.0)
Divorced	1 (0.2)	1 (0.2)	0 (0)
Separated	1 (0.2)	3 (0.7)	1 (1.0)
Not specified	4 (0.8)	4 (1.0)	1 (1.0)
Post-qualification experience (years)				17.760	0.023
≤5	56 (11.8)	36 (8.7)	10 (10.2)
6 - 10	109 (22.9)	85 (20.5)	16 (16.3)
11 - 15	58 (12.2)	45 (10.9)	8 (8.2)
16 - 20	92 (19.4)	59 (14.3)	19 (19.4)
>20	160 (33.7)	189 (45.7)	45 (45.9)
Personal history of asthma				16.466	0.001
Yes	13 (2.8)	24 (5.8)	12 (12.2)
No	459 (97.2)	387 (94.2)	86 (87.8)
Relative with asthma				6.412	0.04
Yes	188 (40.6)	148 (36.7)	27 (27.3)
No	275 (59.4)	255 (63.3)	72 (72.7)
Student(s) with asthma				8.778	0.012
Yes	146 (32.2)	169 (41.9)	35 (36.8)
No	308 (67.8)	234 (58.1)	60 (63.2)