Table 1.

Baseline characteristics of included studies in the meta-analysis of prevalence of head lice in primary school students in Iran.

ID	First author	Publication y	Language of publication	Place of study	Sample size (N)			Prevalence (%)			Association between prevalence of head lice with variables of: (P-value)
Total	Boys	Girls	Total	Boys	Girls	Hair sizea	Sharing personal items	Education of mother	Education of father	Job of mother	Job of father	Family size	Bathing facilities in the house	Bathing frequency
1	Hazrati Tappeh [4]	2012	EN	West Azarbaijan	2,040	866	1,174	4	1.8	5.5	<0.05	—	NS	NS	NS	NS	—	—	NS
2	Kamiabi [7]	2005	EN	Kerman	1,200	564	636	3.8	0.4	6.8	<0.05	—	<0.05	<0.05	—	<0.05	<0.05	<0.05	—
3	Mohammadi-Azni [15]	2014	EN	Semnan	2,700	—	2,700	3.6	—	3.6	—	—	—	—	—	—	—	—	—
4	Moradi [16]	2009	EN	Hamadan	900	450	450	1.3	0.44	2.2	—	—	<0.05	<0.05	—	—	NS	—	—
5	Motevalli Haghi [17]	2014	EN	Golestan	1,510	—	1,510	3.6	—	3.6	—	<0.05	—	<0.05	—	<0.05	<0.05	<0.05	—
6	Nazari [18]	2007	EN	Hamadan	847	440	407	6.85	0.7	13.5	—	<0.05	<0.05	<0.05	—	NS	<0.05	—	—
7	Salehi [19]	2014	EN	Khoozestan	624	302	322	4.3	0	8.4	—	—	NS	NS	—	NS	—	—	—
8	Alempour-Salemi [20]	2003	EN	Sistan and Baluchestan	918	—	918	27	—	27	NS	—	—	—	—	—	—	—	—
9	Sayyadi [21]	2013	EN	Kermanshah	358	—	358	15.8	—	15.8	<0.05	<0.05	<0.05	NS	NS	NS	<0.05	—	<0.05
10	Shayeghi [22]	2010	EN	East Azerbaijan	500	200	300	4.8	2	6.7	—	—	NS	<0.05	—	—	<0.05		<0.05
11	Soleimani [23]	2007	EN	Hormozgan	515	246	269	23.9	11.1	35.3	—	—	<0.05	<0.05	NS	<0.05	<0.05	—	—
12	Vahabi [12]	2012	EN	Kurdistan	810	—	810	4.7	—	4.7	NS	<0.05	<0.05	<0.05	NS	NS	—	—	NS
13	Vahabi [24]	2013	EN	Kermanshah	750	—	750	8	—	8	NS	<0.05	<0.05	<0.05	NS	<0.05	—	—	NS
14	Yousefi [25]	2012	EN	Kerman	1,772	926	846	1.1	0.6	1.6	NS	—	<0.05	<0.05	—	—	<0.05	—	<0.05
15	Motovali-Emami [11]	2008	EN	Kerman	40,586	19,774	20,812	1.8	0.6	2.9	—	—	<0.05	—	—	—	—	—	—
16	Afshari [26]	2013	Persian	Tehran	10,000	—	10,000	1.25	—	1.25	—	—	—	—	—	—	—	NS	NS
17	Arjomanzadeh [27]	2001	Persian	Booshehr	3,913	1,962	1,951	12	2	22	—	—	<0.05	<0.05	—	<0.05	<0.05	—	—
18	Bashiribod [28]	2001	Persian	Tehran	1,921	—	—	15.8	—	—	<0.05	—	—	—	—	—	—	—	—
19	Davari [29]	2005	Persian	Kurdistan	1,195	—	—	19.7	—	—	—	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05
20	Doroodgar [30]	2010	Persian	Esfahan	3,589	2,096	1,493	0.47	1	0.1	—	—	<0.05	NS	<0.05	<0.05	NS	<0.05	—
21	Farzinnia [31]	2004	Persian	Qom	1,650	—	1,650	4.5	—	4.5	<0.05	<0.05	<0.05	NS	NS	NS	<0.05	NS	—
22	Ghaderi [32]	2010	Persian	South Khorasan	1,226	—	—	4.5	—	—	—	—	—	—	—	—	—	—	—
23	Gholami parizad [33]	2001	Persian	Ilam	658	315	343	5.5	4.5	6.5	—	—	<0.05	<0.05	NS	—	<0.05	<0.05	—
24	Hosseini [34]	2014	Persian	North Khorasan	250	120	130	10	4.2	15.4	NS	NS	—	—	NS	NS	NS	NS	NS
25	Javidi [35]	2004	Persian	Razavi Khorasan	769	—	769	7.6	—	7.6	—	—	—	—	—	—	—	—	—
26	Modarresi [36]	2013	Persian	Mazandaran	1,846	889	957	5.7	2.5	8.8	—	NS	<0.05	<0.05	NS	—	NS	—	—
27	Moradi [37]	2012	Persian	Hamadan	8,568	—	—	8.2	—	—	—	—	—	—	—	—	—	—	—
28	Motalebi [38]	2000	Persian	Gonabad	846	—	—	10.3	—	—	—	<0.05	—	—	—	—	—	—	<0.05
29	Motevalli-Emami [39]	2003	Persian	Esfahan	26,421	—	—	0.8	—	—	—	—	—	—	—	—	—	—	—
30	Motevalli-Haghi [40]	2014	Persian	Mazandaran	45,237	9,213	36,024	1.8	1.7	1.9	—	<0.05	<0.05	<0.05	—	<0.05	<0.05	<0.05	—
31	Noroozi [41]	2013	Persian	Gom	900	—	900	13.3	—	13.3	—	NS	<0.05	<0.05	NS	<0.05	<0.05	<0.05	<0.05
32	Poorbaba [42]	2004	Persian	Guilan	2,893	1,493	1,400	4.5	3.3	5.7	—	—	<0.05	<0.05	NS	<0.05	—	—	—
33	Rafie [43]	2009	Persian	Khoozestan	810	—	810	11	—	11	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05
34	Rafinejad [44]	2006	Persian	Guilan	4,244	2,115	2,129	9.2	4.7	13.7	<0.05	NS	<0.05	<0.05	<0.05	<0.05	<0.05	NS	NS
35	Saghafipour [45]	2012	Persian	Gom	1,725	—	1,725	7.6	—	7.6	—	NS	<0.05	<0.05	NS	<0.05	<0.05	<0.05	<0.05
36	Shahraki [46]	2001	Persian	Kohgiluyeh and Boyer–Ahmad	12,247	6,438	5,809	11	1.3	21.8	—	—	—	—	—	—	—	—	—
37	Soleimanizadeh [47]	2002	Persian	Bandarabbas	3,249	—	—	12.3	—	—	<0.05	—	<0.05	<0.05	<0.05	<0.05	<0.05	NS	—
38	Yaghmaie [48]	2007	Persian	Kurdistan	600	—	600	7.7	—	7.7	NS	—	<0.05	NS	NS	NS	—	—	—
39	Zabihi [49]	2005	Persian	Mazandaran	2,300	1,150	1,150	2.2	0.96	3.5	—	—	NS	<0.05	NS	NS	<0.05	—	—
40	Zahirnia [8]	2005	Persian	Hamadan	7,219	—	7,219	13.5	—	13.5	—	—	—	—	—	—	—	—	—

EN = English; NS = not significant.

^aShort, Moderate, High.