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Table 3 Analysis of author’s country of affiliation and collaboration productivity

From: The state of population health research performance in the Middle East and North Africa: a meta-research study

  Authors’ affiliation Total p value*
Outside Collaboration Inside
Total 157 (100%) 115 (100%) 115 (100%) 387 (100%)
Journal impact factor (JIF) JIF < 2 52 (33.1%) 45 (39.1%) 79 (68.7%) 176 (45.5%) < 0.0001
2 ≤ JIF < 4 62 (39.5%) 44 (38.3%) 26 (22.6%) 132 (34.1%)
JIF ≥ 4 43 (27.4%) 26 (22.6%) 10 (8.7%) 79 (20.4%)
Yearly number of citations (n) n < 10 64 (40.8%) 74 (64.3%) 83 (72.2%) 221 (57.1%) < 0.0001
10 ≤ n < 50 72 (45.9%) 35 (30.4%) 32 (27.8%) 139 (35.9%)
50 ≤ n < 100 12 (7.6%) 4 (3.5%) 0 (0.0%) 16 (4.1%)
n ≥ 100 9 (5.7%) 2 (1.7%) 0 (0.0%) 11 (2.8%)
Journal access Open 59 (37.6%) 55 (47.8%) 74 (64.3%) 188 (48.6%) < 0.0001
Hybrid 80 (51.0%) 56 (48.7%) 39 (33.9%) 175 (45.2%)
Non-open 18 (11.5%) 4 (3.5%) 2 (1.7%) 24 (6.2%)
Systematic review geographical coverage Country-specific 18 (11.5%) 30 (26.1%) 43 (37.4%) 91 (23.5%) < 0.0001
Global/multiple regions 85 (54.1%) 19 (16.5%) 13 (11.3%) 117 (30.2%)
Middle East and North Africa/ Arab world 21 (13.4%) 23 (20.0%) 29 (25.2%) 73 (18.9%)
Middle East/ Asia/ Gulf Cooperation Council 24 (15.3%) 22 (19.1%) 23 (20.0%) 69 (17.8%)
North Africa/ East Africa/ Africa 9 (5.7%) 21 (18.3%) 7 (6.1%) 37 (9.6%)
Systematic review health topic Alcohol, substance, and nicotine abuses 11 (7.0%) 2 (1.7%) 5 (4.3%) 18 (4.7%) NS
Cardiovascular disease 7 (4.5%) 6 (5.2%) 4 (3.5%) 17 (4.4%)
Diabetes 7 (4.5%) 8 (7.0%) 6 (5.2%) 21 (5.4%)
Other metabolic syndromes 5 (3.2%) 7 (6.1%) 3 (2.6%) 15 (3.9%)
Genetics 1 (0.6%) 3 (2.6%) 5 (4.3%) 9 (2.3%)
Infectious disease 46 (29.3%) 46 (40.0%) 41 (35.7%) 133 (34.4%)
Mental health 8 (5.1%) 12 (10.4%) 8 (7.0%) 28 (7.2%)
Nutrition 8 (5.1%) 1 (0.9%) 5 (4.3%) 14 (3.6%)
Cancer 12 (7.6%) 4 (3.5%) 12 (10.4%) 28 (7.2%)
Other 41 (26.1%) 24 (20.9%) 23 (20.0%) 88 (22.7%)
Trauma/Injury/Violence 11 (7.0%) 2 (1.7%) 3 (2.6%) 16 (4.1%)
  1. *p-value of the Fisher’s exact test. Association statistical significance threshold at 0.05 was corrected using Bonferroni method to address multiple testing problem. As we conducted 29 tests, significance threshold was at 0.0017. NS: not significant