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. 2015 Feb 2;2015(2):CD001067. doi: 10.1002/14651858.CD001067.pub3

Chatwani 1997.

Methods Randomized trial
 Study period: not stated
Participants Inclusion criteria: women with pelvic cellulitis after hysterectomy or postpartum endometritis (defined as temperature of at least 38.3 °C after the first 24 hours and after cesarean birth and fundal tenderness, parametrial tenderness, and purulent lochia)
 Setting: multicenter, USA
 Number of participants: n = 579 (404 with postpartum endometritis)
Interventions Clindamycin 900 mg iv every 8 hours (n = 242; 202 postcesarean birth) plus aztreonam 1 g iv every 8 hours vs trospectomycin 500 mg iv every 8 hours (n = 243; 200 postcesarean birth) plus aztreonam 1 g iv every 8 hours
Outcomes Treatment failure (postcesarean birth women with endometritis provided separately)
 For other outcomes (wound infection, serious complications, diarrhea) the results for endometritis postcesarean birth were not reported separately and have not been included
 The 1 serious complication observed was septic thrombophlebitis in the trospectomycin group
Notes Pharmaceutical sponsorship ‐ explicit
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk Computer‐generated randomization table by pharmaceutical sponsor
Allocation concealment (selection bias) Unclear risk Not stated
Blinding of participants and personnel (performance bias) 
 All outcomes Unclear risk States “double‐blinded” without further description
Blinding of outcome assessment (detection bias) 
 All outcomes Unclear risk Not stated
Incomplete outcome data (attrition bias) 
 All outcomes High risk “Forty‐nine patients from the trospectomycin group and 45 from the clindamycin group were excluded for the efficacy evaluation. The reasons for exclusion included protocol violations as well as use of concomitant antibiotic, and other foci of infection”‐ balanced in numbers over both arms but numbers are high (30%) and the reasons for exclusion given could be related to true outcome
Selective reporting (reporting bias) Unclear risk The protocol is not available, insufficient information to permit judgment
Other bias High risk Pharmaceutical sponsorship ‐ explicit