TABLE 4.

Diabetes mellitus screening in TB patients by out-patient volume, TB burden and nursing coverage, Harare, Zimbabwe, April 2016–October 2017

Variable	Registered in TB clinic n	Screened for RBG n (%)	P value*	RBG 3 6.1 mmol/l n	Screened for FBG n (%)	P value*
By patient volume
High-volume sites†	739	596 (81)		287	204 (71)
Low-volume sites‡	878	709 (81)	1	303	223 (68)	0.42
By TB burden
High TB notifying§	899	709 (79)		324	215 (66)
Low TB notifying¶	718	596 (83)	<0.04	293	212 (72)	0.11
By nursing coverage
High coverage#	861	690 (80)		318	223 (70)
Low coverage**	756	615 (81)	0.61	299	204 (68)	0.59

^* Z-test for difference in proportions.

^† Average daily OPD attendance ⩾200 persons.

^‡ Average daily OPD attendance <200 persons.

^§ TB notification rate ⩾ 140/100 000.

^¶ TB notification rate <140/100 000.

^#Nursing coverage ⩾25/100 000.

^**Nursing coverage < 25/100000.

TB = tuberculosis; RBG = random blood glucose; FBG = fasting blood glucose; OPD = out-patient department.