Table 1

Individual data from the 11 NHS Trusts

Variable	Each individual Trust data											Combined data across all Trusts
Variable	1	2	3	4	5	6	7	8	9	10	11	Combined data across all Trusts
Number of beds*	537	690	344	264	449	939	680	997	274	690	293	6157
Diabetes inpatient specialist nurse time devoted to inpatient diabetes care†	75.5	97	30	20	20	78	75	52	10	32	48.5	538
Number of ‘at risk’ participants
All	85	82	40	43	67	156	73	155	50	74	41	866
Insulin	50	56	26	18	39	103	44	96	29	52	28	541
Sulfonylurea	32	25	12	22	24	44	22	52	18	20	12	283
Both‡	3	1	2	3	4	9	7	7	3	2	1	42
Number of hypoglycaemic readings
All	334	163	136	115	264	432	234	316	159	198	170	2521
Insulin	219	107	90	61	161	257	161	199	96	118	125	1594
Sulfonylurea	105	55	34	51	89	154	61	104	46	68	34	801
Both‡	10	1	12	3	14	21	12	13	17	12	11	126
Mild hypoglycaemia	239	124	86	81	177	309	165	203	103	134	108	1729
Severe hypoglycaemia	95	39	50	34	87	123	69	113	56	64	62	792
Hypoglycaemia per 100 bed ratio§
All	62.2	23.6	39.5	43.6	58.8	46	34.4	31.7	58	28.7	58	41
Mild hypoglycaemia	44.5	18	25	30.7	39.4	32.9	24.3	20.4	37.6	19.4	36.9	28.1
Severe hypoglycaemia	17.7	5.6	14.5	12.9	19.4	13.1	10.1	11.3	20.4	9.3	21.1	12.9
Hypoglycaemic readings per participant
Median	2	1	2	2	3	2	2	2	2	1	2	2
Mean	3.93	1.99	3.4	2.7	3.94	2.77	3.21	2.04	3.18	2.68	4.15	2.91
Range	1–29	1–9	1–11	1–23	1–18	1–16	1–13	1–11	1–12	1–14	1–30	1–30
Participants with ≥5 readings of hypoglycaemia during the study period	20	7	10	5	18	27	15	15	11	15	11	154
Frequency of glucose monitoring
Insulin	BD-QDS	QDS and 3am	QDS	QDS	BD-QDS	QDS	QDS	QDS	QDS	QDS	QDS	−
Sulfonylurea	BD-QDS	QDS and 3am	BD-QDS	BD	BD-QDS	BD-QDS	QDS	BD-QDS	QDS	OD-QDS	QDS	−
Hospital meal timings
Breakfast	7:30	7:00	7:00–8:00	8:30	7:30–8:30	7:00–9:00	7:30–8:30	7:45–8:30	7:45–8:30	7:00–8:00	8:00	−
Afternoon meal	12:00	12:00	12:00–13:00	12:15	12:00–13:00	12:00–14:00	11:30–12:45	12:00–13:00	12:00–13:00	12:00–13:00	12:00	−
Evening meal	17:00	17:00	18:00–19:00	17:00	17:00–18:00	17:00–19:00	16:30–17:45	17:00–18:00	17:00–18:00	17:00–18:00	17:00	−
Time period of hypoglycaemic readings
Daytime
09:00–14:59	75	30	25	8	33	61	45	46	25	14	31	393
15:00–20:59	50	33	29	25	51	78	46	65	24	41	47	489
09:00–20:59	125	63	54	33	84	139	91	111	49	55	78	882
Night-time
21:00–02:59	93	36	36	34	69	133	68	76	45	51	45	686
03:00–08:59	116	64	46	48	111	160	75	129	65	92	47	953
21:00–08:59	209	100	82	82	180	293	143	205	110	143	92	1639
Percentage of night-time hypoglycaemia	62.6	61.3	60.3	71.3	68.2	67.8	61.1	64.9	69.2	72.2	54.1	65

*Bed numbers exclude paediatric, maternity and day case units.
†Average diabetes inpatient specialist nurse time (h/week) devoted to inpatient diabetes care.
‡Participants on insulin and sulfonylurea therapy.
§Calculated as 100×number of hypoglycaemic readings/number of beds.
No Trust guaranteed the provision of a bedtime snack for inpatients with diabetes.
NHS, National Health Service.