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. 2021 Nov 22;28(2):222–238. doi: 10.1016/j.cmi.2021.11.007

Table 3.

Grade evidence profile PICO1: Hydroxychloroquine for COVID-19

Hydroxychloroquine for COVID-19
People: Patients with COVID-19
Settings: Inpatients (15 studies) outpatient (5 studies)
Intervention: Hydroxychloroquine
Comparison: No treatment
Outcomes Absolute effect
Relative effect (95% CI) Number of studies Certainty of the evidence (GRADE)
Without hydroxychloroquine With hydroxychloroquine
All-cause mortality 168
per 1000
178
per 1000
RR 1.06
(0.97 to 1.16)
19 [[12], [13], [14], [15], [16],[18], [19], [20], [21],23,[25], [26], [27], [28],[110], [111], [112], [113], [114]]
(10 382 patients)
⊕⊕⊕⊕
High
Difference: 10 more per 1000
(95% CI 5 fewer to 27 more)
Invasive mechanical ventilation or ECMO 85
per 1000
92
per 1000
RR 1.08
(0.91 to 1.28)
8 [14,15,[18], [19], [20],28,112,114]
(5701 patients)
⊕⊕⊕⊕
High
Difference: 7 more per 1000
(95% CI 8 fewer to 24 more)
Hospitalization (end of follow-up) 55
per 1000
37
per 1000
RR 0.68
(0.41 to 1.13)
5 [[26], [27], [28],110,113]
(1345 patients)
⊕⊕⊖⊖
Low (serious imprecision and serious risk of bias)
Difference: 18 fewer per 1000
(95% CI 32 fewer to 7 more)
Clinical deterioration (within 28 days of treatment begin) 89
per 1000
72
per 1000
RR 0.81
(0.35 to 1.89)
1 [19]
(247 patients)
⊕⊕⊖⊖
Low (very serious imprecision)
Difference: 17 fewer per 1000
95% CI 58 fewer to 79 more)
Clinical Improvement (within 28 days of treatment begin) 756
per 1000
794
per 1000
RR 1.05
(0.91 to 1.2)
1 [19]
(247 patients)
⊕⊕⊖⊖
Low (very serious imprecision)
Difference: 38 more per 1000
(95% CI 68 fewer to 151 more)
Discharge for hospital (within 28 days of treatment begin) 694
per 1000
680
per 1000
RR 0.98
(0.96 to 1.01)
5 [12,19,111,112,114] (7365 patients) ⊕⊕⊕⊕
High
Difference: 14 fewer per 1000
(95% CI 28 fewer to 7 more)
Adverse events (end of follow-up) 322
per 1000
538
per 1000
RR 1.67
(1.21 to 2.3)
11 [13,14,[19], [20], [21], [22], [23],27,28,110,115]
(2077 patients)
⊕⊕⊕⊖
Moderate (serious risk of bias)
Difference: 216 more per 1000
(95% CI 68 more to 419 more)
Serious adverse events (end of follow-up) 68
per 1000
74
per 1000
RR 1.09
(0.86 to 1.37)
11 [13,19,20,22,23,25,[27], [28], [29],113,115]
(2721 patients)
⊕⊕⊕⊖
Moderate (Serious risk of bias)
Difference: 6 more per 1000
(95% CI 10 fewer to 25 more)

Evidence adopted: Australian National COVID-19 Evidence Taskforce (https://app.magicapp.org/#/guideline/5446/section/78675).

Evidence Search date: April 23–June 11.