Table 2.

Number of fracture cases observed between April 17, 2013 and March 15, 2016.

Age groups	Fracture site	Number of observed cases
		Calendar month
		Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
0–19 years	Rib or sternum	≤10	15	13	≤10	13	16	16	13	18	16	13	16
	Clavicle, scapula, or humerus	1283	1278	1278	1510	2297	2024	1685	1367	1885	1984	1685	1389
	Radius or ulna—distal radius	1678	1629	1990	2224	3653	2912	2513	1743	2749	2892	2327	1830
	Radius or ulna—other	899	932	985	1203	1932	1769	1401	978	1547	1610	1258	1016
	Hand bone	1907	2148	2000	1818	2548	2777	2217	1473	2467	2791	2630	2309
	Femur—hip	≤10	≤10	≤10	≤10	≤10	≤10	≤10	≤10	13	12	≤10	≤10
	Femur—other	53	49	64	48	69	66	59	51	67	58	62	56
	Patella, tibia, or fibula	687	601	650	600	765	640	557	441	618	665	683	708
	Ankle	491	480	450	436	475	465	397	319	405	461	466	460
	Foot bone—toe	297	309	281	286	464	513	562	475	478	438	398	370
	Foot bone—other	372	398	338	339	462	413	382	317	456	450	457	373
20–39 years	Rib or sternum	68	62	47	51	49	60	60	52	50	53	56	53
	Clavicle, scapula, or humerus	613	660	578	383	506	399	474	502	455	471	417	445
	Radius or ulna—distal radius	561	708	469	240	332	294	268	302	271	282	235	359
	Radius or ulna—other	273	339	282	203	264	256	223	221	239	251	210	227
	Hand bone	839	808	787	750	1010	1023	984	914	919	992	940	914
	Femur—hip	59	33	34	24	34	31	38	37	48	38	34	33
	Femur—other	38	45	40	40	47	41	46	38	53	40	45	41
	Patella, tibia, or fibula	414	408	327	319	427	358	377	363	336	362	362	364
	Ankle	316	367	273	280	395	317	310	302	316	320	318	348
	Foot bone—toe	194	190	173	157	252	252	299	282	297	273	259	260
	Foot bone—other	305	272	280	282	408	389	395	404	370	354	347	292
40–64 years	Rib or sternum	271	236	199	178	259	211	213	238	214	243	234	264
	Clavicle, scapula, or humerus	1243	1205	986	886	1284	1107	1074	1145	1116	1165	1098	1204
	Radius or ulna—distal radius	2050	2060	1173	1016	1335	1298	1398	1385	1367	1386	1449	1731
	Radius or ulna—other	575	580	382	373	485	434	495	399	451	490	477	543
	Hand bone	1177	1084	969	856	1136	1104	1100	1081	1136	1224	1146	1181
	Femur—hip	563	491	431	366	436	401	414	439	468	468	485	503
	Femur—other	82	90	85	60	74	79	74	84	84	116	79	89
	Patella, tibia, or fibula	1202	1224	932	744	853	744	798	831	871	914	976	1116
	Ankle	868	927	642	519	701	644	597	616	658	634	667	756
	Foot bone—toe	492	431	399	400	559	585	740	775	734	704	613	548
	Foot bone—other	653	599	583	579	731	724	833	855	803	810	729	761
65–79 years	Rib or sternum	248	220	213	186	190	177	173	218	207	212	227	297
	Clavicle, scapula, or humerus	1355	1219	991	882	1011	1048	1111	1065	1083	1225	1248	1351
	Radius or ulna—distal radius	3366	3412	2001	1905	2479	2360	2508	2403	2468	2770	2713	3064
	Radius or ulna—other	682	695	481	514	623	588	598	582	604	713	663	710
	Hand bone	698	707	544	544	664	586	630	602	656	766	736	857
	Femur—hip	2756	2454	2002	1692	2019	1857	1848	1920	2114	2309	2377	2687
	Femur—other	215	192	150	122	183	191	166	184	162	189	193	216
	Patella, tibia, or fibula	1136	1118	840	812	867	767	812	769	886	990	1052	1147
	Ankle	594	674	448	411	454	425	436	463	445	515	529	546
	Foot bone—toe	203	164	139	144	232	242	312	334	316	278	236	233
	Foot bone—other	486	467	406	425	558	515	608	548	538	603	577	604
≥80 years	Rib or sternum	215	180	145	150	174	157	145	142	159	200	228	231
	Clavicle, scapula, or humerus	1310	1193	903	849	1012	1017	1067	998	1147	1272	1282	1393
	Radius or ulna—distal radius	2250	2051	1502	1410	1757	1594	1742	1713	1811	2037	2025	2191
	Radius or ulna—other	491	443	394	359	421	413	453	449	468	533	497	494
	Hand bone	447	369	324	284	329	308	311	346	349	447	437	514
	Femur—hip	8711	7579	6452	5973	6932	6562	6817	6808	6829	7919	7964	8785
	Femur—other	371	365	293	278	316	321	333	331	365	368	368	429
	Patella, tibia, or fibula	557	514	448	393	444	411	410	414	448	516	490	603
	Ankle	182	191	115	129	150	134	138	140	128	171	167	184
	Foot bone—toe	62	49	41	53	61	72	99	82	hi94	95	56	58
	Foot bone—other	196	162	146	146	178	174	189	208	189	197	240	206
Number of days during the study period		93	85	77	74	93	90	93	93	90	93	90	93