Table 2.

Knowledge of RHS among secondary school students in Woldia, North Wollo Zone, Ethiopia, 2019.

Variables	Category	Frequency	Percent
Aware ness of pregnancy risk time	Yes	334	79.5
	No	86	20.5
RH information	Yes	298	71
	No	122	29
Ever heard about family planning method	Yes	322	76.7
	No	98	23.3
Ever heard of VCT	Yes	315	75.0
	No	105	25.0
Source of information about RH	Parents	116	27.76
	Peer	99	23.76
	Teacher	101	24.16
	Notice board	71	17.06
	Mass media	33	7.26
Ways of preventing unwanted pregnancy
Oral contraceptive pills	Yes	231	55.0
	No	189	45.0
Condom	Yes	222	52.9
	No	198	47.1
Injectable	Yes	292	69.5
	No	128	30.5
IUCD	Yes	77	18.3
	No	343	81.7
Sterilization	Yes	51	12.1
	No	369	87.9
Abstain	Yes	99	23.6
	No	321	76.4
Withdrawal	Yes	34	8.1
	No	386	91.9
Safe period/abstain	Yes	61	14.5
	No	359	85.5
Ever heard of STI	Yes	362	86.2
	No	58	13.8
Most known types of STI
Gonorrhea	Yes	146	34.8
	No	274	65.2
Syphilis	Yes	223	53.1
	No	197	46.9
Chancroid	Yes	123	29.3
	No	297	70.7
LGV	Yes	75	17.9
	No	345	82.1
HIV/AIDS	Yes	325	77.4
	No	95	22.6
Symptoms of STI
Genital discharge	Yes	273	65
	No	147	35
Genital ulcer	Yes	163	39
	No	257	61
Pain during urination	Yes	270	61
	No	150	39
Ways of HIV/AIDS transmission
Unsafe sexual intercourse	Yes	317	75.5
	No	103	24.5
Blood transfusion	Yes	228	54.3
	No	192	45.7
Sharing of needle and syringes	Yes	290	69.0
	No	130	31.0
During pregnancy and child birth	Yes	149	35.5
	No	271	64.5
Through breast milk	Yes	131	31.2
	No	289	68.8
Through mosquito and other insects' bite	No	324	77.1
	Yes	96	22.9
Hand shaking or sharing foods	No	330	78.6
	Yes	90	21.4
Ways of preventing unwanted pregnancy
Abstain	Yes	242	57.6
	No	178	42.4
Condom	Yes	233	55.5
	No	187	44.5
Pills/injectable	Yes	258	61.4
	No	162	38.6
Abstain	Yes	242	57.6
	No	178	42.4