Predictors of hypoglycemia in insulin-treated patients with type 2 diabetes mellitus in Basrah

Table 3 Relation of hypoglycemia in the last 3 mo with diabetes mellitus family history, duration of diabetes mellitus, duration of insulin treatment, type of insulin, frequency and total dose

	Hypoglycemia in the last 3 mo		Total (n)	P value
	Yes n (%)	No n (%)
Family history of DM
None	85 (78.7)	23 (21.3)	108	0.601
One	68 (73.1)	25 (26.9)	93
More than one	100 (74.1)	35 (25.9)	135
Duration of DM (yr)
1-10	140 (75.7)	45 (24.3)	185	0.877
11-20	92 (76.0)	29 (24.0)	121
21-30	18 (69.2)	8 (30.8)	26
≥ 31	3 (75.0)	1 (25.0)	4
Duration of insulin treatment (yr)
1-10	238 (74.8)	80 (25.2)	318	0.578
> 10	15 (83.3)	3 (16.7)	18
Type of insulin
Premix	75 (72.1)	29 (27.9)	104	0.239
Regular	6 (75.0)	2 (25.0)	8
NPH	24 (64.9)	13 (35.1)	37
Combination of 2 or 3 insulin types	148 (79.1)	39 (20.9)	187
Frequency of insulin administration/d
Once	3 (30.0)	7 (70.0)	10	0.001
Twice	107 (74.3)	37 (25.7)	144
Thrice	126 (84.0)	24 (16.0)	150
≥ Four times	17 (53.1)	15 (46.9)	32
Total dose of insulin (unit/d)
< 20	3 (37.5)	5 (62.5)	8	0.007
21-40	46 (75.4)	15 (24.6)	61
41-60	121 (79.1)	32 (20.9)	153
61-80	59 (81.9)	13 (18.1)	72
81-100	17 (56.7)	13 (43.3)	30
> 100	7 (58.3)	5 (41.7)	12

DM: Diabetes mellitus; NPH: Neutral protamine hagedorn.