Prevalence of obsessive-compulsive disorders (OCD) symptoms among health care workers in COVID-19 pandemic: a systematic review and meta-analysis

Table 2 Background information of individual studies

Study	Year	Country	Age mean (year) ¹	Male (%)	Single (%)	Event	Sample size	Instrument	Quality score⁴
Taqi Mohammed Jwad Taher [32]	2021	Iraq	20.73	32.12	96.47	707	1644	OCI-R	6
Jun Xing [33]	2020	China	36.77	27.92	25.73	204	548	SCL-90	6
Wen-rui Zhang [34]	2020	China	40.16	35.72	17.97	154	2182	SCL-90-R	6
Yahua Zheng [35]	2021	China	40.45	15.47	25.73 ³	53	207	SCL-90	5
Mohamed Abdelghani [25]	2021	Egypt	39.5	61.93	11.93	45	218	SCL-90-R	7
Gellan K. Ahmed [26]	2021	Egypt	34.26	40.98	24.95	36	122	Y-BOCS	6
Yang Juan [27]	2020	China	31.16	29.39	46.93	171	456	Y-BOCS	7
Min Liu ² [28]	2021	China	29.8	0	0	19	83	SCL-90	5
Kelly Mrklas [29]	2020	Canada	42.79	7.4	12.94	663	1414	BOCS	7
Xiuli Ou [30]	2021	China	30.48	7.6	51.09	27	92	SCL-90	5
Sergio Reno-Chanca [31]	2021	Spain	41.13	28.9	25.73 ³	337	898	Y-BOCS	6

(1) In some studies, mean age was indirectly calculated from their interval reports (if lack of reporting the range, the minimum and maximum ages were regarded as 18 and 70, respectively). (2) This study consisted of pregnant women. (3) This variable was missing in these two studies. Therefore, the median of other studies was replaced. (4) Based on NOS checklist for cross-sectional studies (0–4: unsatisfactory, 5–6: satisfactory, 7–8: good, 9–10: very good)
OCI-R: Obsessive-Compulsive Inventory-Revised. SCL-90: Symptom Checklist-90. SCL-90-R: SCL-90 revised. Y-BOCS: Yale–Brown Obsessive–Compulsive Scale. BOCS: Brief Obsessive-Compulsive Scale

ISSN: 1471-244X